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Finding the Fourth Proportional to 83,288.87, 124,946.24 and 27,115.77

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Solution

The fourth proportional to 83,288.87, 124,946.24 and 27,115.77 is: 40,677.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,288.87 : 124,946.24 = 27,115.77 : x
  2. Step 2: Convert to fraction form
    83,288.87/124,946.24 = 27,115.77/x
  3. Step 3: Cross multiply
    83,288.87x = 124,946.24 × 27,115.77
  4. Step 4: Simplify right side
    83,288.87x = 3,388,013,506.20
  5. Step 5: Solve for x
    x = 3,388,013,506.20/83,288.87
  6. Step 6: Final answer
    x = 40,677.87

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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.