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Finding the Fourth Proportional to 62,692.10, 86,514.42 and 34,397.78

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Solution

The fourth proportional to 62,692.10, 86,514.42 and 34,397.78 is: 47,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,692.10 : 86,514.42 = 34,397.78 : x
  2. Step 2: Convert to fraction form
    62,692.10/86,514.42 = 34,397.78/x
  3. Step 3: Cross multiply
    62,692.10x = 86,514.42 × 34,397.78
  4. Step 4: Simplify right side
    62,692.10x = 2,975,903,985.99
  5. Step 5: Solve for x
    x = 2,975,903,985.99/62,692.10
  6. Step 6: Final answer
    x = 47,468.56

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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.