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Finding the Fourth Proportional to 63,073.65, 86,951.21 and 49,621.57

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Solution

The fourth proportional to 63,073.65, 86,951.21 and 49,621.57 is: 68,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,073.65 : 86,951.21 = 49,621.57 : x
  2. Step 2: Convert to fraction form
    63,073.65/86,951.21 = 49,621.57/x
  3. Step 3: Cross multiply
    63,073.65x = 86,951.21 × 49,621.57
  4. Step 4: Simplify right side
    63,073.65x = 4,314,655,305.49
  5. Step 5: Solve for x
    x = 4,314,655,305.49/63,073.65
  6. Step 6: Final answer
    x = 68,406.63

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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.