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Finding the Fourth Proportional to 59,896.90, 82,691.58 and 39,788.26

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Solution

The fourth proportional to 59,896.90, 82,691.58 and 39,788.26 is: 54,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,896.90 : 82,691.58 = 39,788.26 : x
  2. Step 2: Convert to fraction form
    59,896.90/82,691.58 = 39,788.26/x
  3. Step 3: Cross multiply
    59,896.90x = 82,691.58 × 39,788.26
  4. Step 4: Simplify right side
    59,896.90x = 3,290,154,084.85
  5. Step 5: Solve for x
    x = 3,290,154,084.85/59,896.90
  6. Step 6: Final answer
    x = 54,930.29

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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.