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Finding the Fourth Proportional to 62,621.64, 93,708.90 and 54,398.52

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Solution

The fourth proportional to 62,621.64, 93,708.90 and 54,398.52 is: 81,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,621.64 : 93,708.90 = 54,398.52 : x
  2. Step 2: Convert to fraction form
    62,621.64/93,708.90 = 54,398.52/x
  3. Step 3: Cross multiply
    62,621.64x = 93,708.90 × 54,398.52
  4. Step 4: Simplify right side
    62,621.64x = 5,097,625,470.83
  5. Step 5: Solve for x
    x = 5,097,625,470.83/62,621.64
  6. Step 6: Final answer
    x = 81,403.58

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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.