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Finding the Fourth Proportional to 62,728.53, 86,565.15 and 34,048.19

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Solution

The fourth proportional to 62,728.53, 86,565.15 and 34,048.19 is: 46,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,728.53 : 86,565.15 = 34,048.19 : x
  2. Step 2: Convert to fraction form
    62,728.53/86,565.15 = 34,048.19/x
  3. Step 3: Cross multiply
    62,728.53x = 86,565.15 × 34,048.19
  4. Step 4: Simplify right side
    62,728.53x = 2,947,386,890.99
  5. Step 5: Solve for x
    x = 2,947,386,890.99/62,728.53
  6. Step 6: Final answer
    x = 46,986.39

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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.