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Finding the Fourth Proportional to 83,689.92, 115,494.75 and 45,964.17

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Solution

The fourth proportional to 83,689.92, 115,494.75 and 45,964.17 is: 63,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,689.92 : 115,494.75 = 45,964.17 : x
  2. Step 2: Convert to fraction form
    83,689.92/115,494.75 = 45,964.17/x
  3. Step 3: Cross multiply
    83,689.92x = 115,494.75 × 45,964.17
  4. Step 4: Simplify right side
    83,689.92x = 5,308,620,323.11
  5. Step 5: Solve for x
    x = 5,308,620,323.11/83,689.92
  6. Step 6: Final answer
    x = 63,432.02

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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.