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Finding the Fourth Proportional to 54,449.60, 81,681.71 and 53,472.74

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Solution

The fourth proportional to 54,449.60, 81,681.71 and 53,472.74 is: 80,216.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,449.60 : 81,681.71 = 53,472.74 : x
  2. Step 2: Convert to fraction form
    54,449.60/81,681.71 = 53,472.74/x
  3. Step 3: Cross multiply
    54,449.60x = 81,681.71 × 53,472.74
  4. Step 4: Simplify right side
    54,449.60x = 4,367,744,165.81
  5. Step 5: Solve for x
    x = 4,367,744,165.81/54,449.60
  6. Step 6: Final answer
    x = 80,216.28

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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.