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Finding the Fourth Proportional to 62,712.32, 86,542.92 and 35,855.42

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Solution

The fourth proportional to 62,712.32, 86,542.92 and 35,855.42 is: 49,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,712.32 : 86,542.92 = 35,855.42 : x
  2. Step 2: Convert to fraction form
    62,712.32/86,542.92 = 35,855.42/x
  3. Step 3: Cross multiply
    62,712.32x = 86,542.92 × 35,855.42
  4. Step 4: Simplify right side
    62,712.32x = 3,103,032,744.63
  5. Step 5: Solve for x
    x = 3,103,032,744.63/62,712.32
  6. Step 6: Final answer
    x = 49,480.43

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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.