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Finding the Fourth Proportional to 29,518.20, 40,734.96 and 16,947

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Solution

The fourth proportional to 29,518.20, 40,734.96 and 16,947 is: 23,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,518.20 : 40,734.96 = 16,947 : x
  2. Step 2: Convert to fraction form
    29,518.20/40,734.96 = 16,947/x
  3. Step 3: Cross multiply
    29,518.20x = 40,734.96 × 16,947
  4. Step 4: Simplify right side
    29,518.20x = 690,335,367.12
  5. Step 5: Solve for x
    x = 690,335,367.12/29,518.20
  6. Step 6: Final answer
    x = 23,386.77

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