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Finding the Fourth Proportional to 10,994.04, 15,162.96 and 9,664.92

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Solution

The fourth proportional to 10,994.04, 15,162.96 and 9,664.92 is: 13,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.04 : 15,162.96 = 9,664.92 : x
  2. Step 2: Convert to fraction form
    10,994.04/15,162.96 = 9,664.92/x
  3. Step 3: Cross multiply
    10,994.04x = 15,162.96 × 9,664.92
  4. Step 4: Simplify right side
    10,994.04x = 146,548,795.36
  5. Step 5: Solve for x
    x = 146,548,795.36/10,994.04
  6. Step 6: Final answer
    x = 13,329.84

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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.