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Finding the Fourth Proportional to 54,314.80, 81,472.20 and 35,652.40

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Solution

The fourth proportional to 54,314.80, 81,472.20 and 35,652.40 is: 53,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,314.80 : 81,472.20 = 35,652.40 : x
  2. Step 2: Convert to fraction form
    54,314.80/81,472.20 = 35,652.40/x
  3. Step 3: Cross multiply
    54,314.80x = 81,472.20 × 35,652.40
  4. Step 4: Simplify right side
    54,314.80x = 2,904,679,463.28
  5. Step 5: Solve for x
    x = 2,904,679,463.28/54,314.80
  6. Step 6: Final answer
    x = 53,478.60

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1.5x scale

Why These Related Problems?

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