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Finding the Fourth Proportional to 70,165.92, 96,829.06 and 39,951.25

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Solution

The fourth proportional to 70,165.92, 96,829.06 and 39,951.25 is: 55,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,165.92 : 96,829.06 = 39,951.25 : x
  2. Step 2: Convert to fraction form
    70,165.92/96,829.06 = 39,951.25/x
  3. Step 3: Cross multiply
    70,165.92x = 96,829.06 × 39,951.25
  4. Step 4: Simplify right side
    70,165.92x = 3,868,441,983.33
  5. Step 5: Solve for x
    x = 3,868,441,983.33/70,165.92
  6. Step 6: Final answer
    x = 55,132.78

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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.