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Finding the Fourth Proportional to 18,993.96, 26,211.56 and 10,496.67

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Solution

The fourth proportional to 18,993.96, 26,211.56 and 10,496.67 is: 14,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.96 : 26,211.56 = 10,496.67 : x
  2. Step 2: Convert to fraction form
    18,993.96/26,211.56 = 10,496.67/x
  3. Step 3: Cross multiply
    18,993.96x = 26,211.56 × 10,496.67
  4. Step 4: Simplify right side
    18,993.96x = 275,133,911.96
  5. Step 5: Solve for x
    x = 275,133,911.96/18,993.96
  6. Step 6: Final answer
    x = 14,485.34

Related Problems

Find fourth proportional to 9,496.98, 13,105.78 and 5,248.33
Half scale
Find fourth proportional to 37,987.91, 52,423.11 and 20,993.33
Double scale
Find fourth proportional to 18,994.96, 26,212.93 and 10,497.67
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.