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Finding the Fourth Proportional to 70,062.84, 96,689.43 and 39,850.92

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Solution

The fourth proportional to 70,062.84, 96,689.43 and 39,850.92 is: 54,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,062.84 : 96,689.43 = 39,850.92 : x
  2. Step 2: Convert to fraction form
    70,062.84/96,689.43 = 39,850.92/x
  3. Step 3: Cross multiply
    70,062.84x = 96,689.43 × 39,850.92
  4. Step 4: Simplify right side
    70,062.84x = 3,853,162,739.78
  5. Step 5: Solve for x
    x = 3,853,162,739.78/70,062.84
  6. Step 6: Final answer
    x = 54,995.81

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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.