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Finding the Fourth Proportional to 70,962.75, 106,444.13 and 39,800.43

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Solution

The fourth proportional to 70,962.75, 106,444.13 and 39,800.43 is: 59,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,962.75 : 106,444.13 = 39,800.43 : x
  2. Step 2: Convert to fraction form
    70,962.75/106,444.13 = 39,800.43/x
  3. Step 3: Cross multiply
    70,962.75x = 106,444.13 × 39,800.43
  4. Step 4: Simplify right side
    70,962.75x = 4,236,521,945.97
  5. Step 5: Solve for x
    x = 4,236,521,945.97/70,962.75
  6. Step 6: Final answer
    x = 59,700.65

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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.