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Finding the Fourth Proportional to 83,616.67, 115,391.08 and 47,807.43

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Solution

The fourth proportional to 83,616.67, 115,391.08 and 47,807.43 is: 65,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.67 : 115,391.08 = 47,807.43 : x
  2. Step 2: Convert to fraction form
    83,616.67/115,391.08 = 47,807.43/x
  3. Step 3: Cross multiply
    83,616.67x = 115,391.08 × 47,807.43
  4. Step 4: Simplify right side
    83,616.67x = 5,516,550,367.73
  5. Step 5: Solve for x
    x = 5,516,550,367.73/83,616.67
  6. Step 6: Final answer
    x = 65,974.29

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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.