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Finding the Fourth Proportional to 64,387.80, 96,696.90 and 62,314.20

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Solution

The fourth proportional to 64,387.80, 96,696.90 and 62,314.20 is: 93,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,387.80 : 96,696.90 = 62,314.20 : x
  2. Step 2: Convert to fraction form
    64,387.80/96,696.90 = 62,314.20/x
  3. Step 3: Cross multiply
    64,387.80x = 96,696.90 × 62,314.20
  4. Step 4: Simplify right side
    64,387.80x = 6,025,589,965.98
  5. Step 5: Solve for x
    x = 6,025,589,965.98/64,387.80
  6. Step 6: Final answer
    x = 93,582.79

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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.