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Finding the Fourth Proportional to 70,087.68, 96,706.56 and 40,273.92

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Solution

The fourth proportional to 70,087.68, 96,706.56 and 40,273.92 is: 55,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,087.68 : 96,706.56 = 40,273.92 : x
  2. Step 2: Convert to fraction form
    70,087.68/96,706.56 = 40,273.92/x
  3. Step 3: Cross multiply
    70,087.68x = 96,706.56 × 40,273.92
  4. Step 4: Simplify right side
    70,087.68x = 3,894,752,260.92
  5. Step 5: Solve for x
    x = 3,894,752,260.92/70,087.68
  6. Step 6: Final answer
    x = 55,569.71

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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.