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Finding the Fourth Proportional to 63,921.81, 88,212.20 and 35,626.89

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Solution

The fourth proportional to 63,921.81, 88,212.20 and 35,626.89 is: 49,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,921.81 : 88,212.20 = 35,626.89 : x
  2. Step 2: Convert to fraction form
    63,921.81/88,212.20 = 35,626.89/x
  3. Step 3: Cross multiply
    63,921.81x = 88,212.20 × 35,626.89
  4. Step 4: Simplify right side
    63,921.81x = 3,142,726,167.92
  5. Step 5: Solve for x
    x = 3,142,726,167.92/63,921.81
  6. Step 6: Final answer
    x = 49,165.16

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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.