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Finding the Fourth Proportional to 14,765.68, 22,139.28 and 4,902.40

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Solution

The fourth proportional to 14,765.68, 22,139.28 and 4,902.40 is: 7,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.68 : 22,139.28 = 4,902.40 : x
  2. Step 2: Convert to fraction form
    14,765.68/22,139.28 = 4,902.40/x
  3. Step 3: Cross multiply
    14,765.68x = 22,139.28 × 4,902.40
  4. Step 4: Simplify right side
    14,765.68x = 108,535,606.27
  5. Step 5: Solve for x
    x = 108,535,606.27/14,765.68
  6. Step 6: Final answer
    x = 7,350.53

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.