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Finding the Fourth Proportional to 62,907.91, 86,812.86 and 36,049.12

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Solution

The fourth proportional to 62,907.91, 86,812.86 and 36,049.12 is: 49,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,907.91 : 86,812.86 = 36,049.12 : x
  2. Step 2: Convert to fraction form
    62,907.91/86,812.86 = 36,049.12/x
  3. Step 3: Cross multiply
    62,907.91x = 86,812.86 × 36,049.12
  4. Step 4: Simplify right side
    62,907.91x = 3,129,527,125.84
  5. Step 5: Solve for x
    x = 3,129,527,125.84/62,907.91
  6. Step 6: Final answer
    x = 49,747.75

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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.