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Finding the Fourth Proportional to 62,463.16, 86,174.94 and 39,798.10

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Solution

The fourth proportional to 62,463.16, 86,174.94 and 39,798.10 is: 54,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,463.16 : 86,174.94 = 39,798.10 : x
  2. Step 2: Convert to fraction form
    62,463.16/86,174.94 = 39,798.10/x
  3. Step 3: Cross multiply
    62,463.16x = 86,174.94 × 39,798.10
  4. Step 4: Simplify right side
    62,463.16x = 3,429,598,879.61
  5. Step 5: Solve for x
    x = 3,429,598,879.61/62,463.16
  6. Step 6: Final answer
    x = 54,905.95

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1.5x scale

Why These Related Problems?

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