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Finding the Fourth Proportional to 63,402.57, 87,494.91 and 34,330.80

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Solution

The fourth proportional to 63,402.57, 87,494.91 and 34,330.80 is: 47,376.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,402.57 : 87,494.91 = 34,330.80 : x
  2. Step 2: Convert to fraction form
    63,402.57/87,494.91 = 34,330.80/x
  3. Step 3: Cross multiply
    63,402.57x = 87,494.91 × 34,330.80
  4. Step 4: Simplify right side
    63,402.57x = 3,003,769,818.75
  5. Step 5: Solve for x
    x = 3,003,769,818.75/63,402.57
  6. Step 6: Final answer
    x = 47,376.16

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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.