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Finding the Fourth Proportional to 18,994.69, 26,212.35 and 10,496.80

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Solution

The fourth proportional to 18,994.69, 26,212.35 and 10,496.80 is: 14,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.69 : 26,212.35 = 10,496.80 : x
  2. Step 2: Convert to fraction form
    18,994.69/26,212.35 = 10,496.80/x
  3. Step 3: Cross multiply
    18,994.69x = 26,212.35 × 10,496.80
  4. Step 4: Simplify right side
    18,994.69x = 275,145,795.48
  5. Step 5: Solve for x
    x = 275,145,795.48/18,994.69
  6. Step 6: Final answer
    x = 14,485.41

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Find fourth proportional to 9,497.35, 13,106.18 and 5,248.40
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.