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Finding the Fourth Proportional to 83,841.70, 125,775.06 and 27,687.76

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Solution

The fourth proportional to 83,841.70, 125,775.06 and 27,687.76 is: 41,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,841.70 : 125,775.06 = 27,687.76 : x
  2. Step 2: Convert to fraction form
    83,841.70/125,775.06 = 27,687.76/x
  3. Step 3: Cross multiply
    83,841.70x = 125,775.06 × 27,687.76
  4. Step 4: Simplify right side
    83,841.70x = 3,482,429,675.27
  5. Step 5: Solve for x
    x = 3,482,429,675.27/83,841.70
  6. Step 6: Final answer
    x = 41,535.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.