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Finding the Fourth Proportional to 83,760.96, 115,692.72 and 62,634.24

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Solution

The fourth proportional to 83,760.96, 115,692.72 and 62,634.24 is: 86,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,760.96 : 115,692.72 = 62,634.24 : x
  2. Step 2: Convert to fraction form
    83,760.96/115,692.72 = 62,634.24/x
  3. Step 3: Cross multiply
    83,760.96x = 115,692.72 × 62,634.24
  4. Step 4: Simplify right side
    83,760.96x = 7,246,325,590.73
  5. Step 5: Solve for x
    x = 7,246,325,590.73/83,760.96
  6. Step 6: Final answer
    x = 86,511.97

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1.5x scale

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.