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Finding the Fourth Proportional to 63,686.78, 87,735.86 and 44,530.71

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Solution

The fourth proportional to 63,686.78, 87,735.86 and 44,530.71 is: 61,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,686.78 : 87,735.86 = 44,530.71 : x
  2. Step 2: Convert to fraction form
    63,686.78/87,735.86 = 44,530.71/x
  3. Step 3: Cross multiply
    63,686.78x = 87,735.86 × 44,530.71
  4. Step 4: Simplify right side
    63,686.78x = 3,906,940,247.10
  5. Step 5: Solve for x
    x = 3,906,940,247.10/63,686.78
  6. Step 6: Final answer
    x = 61,346.17

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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.