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Finding the Fourth Proportional to 48,718.80, 73,078.20 and 27,982.80

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Solution

The fourth proportional to 48,718.80, 73,078.20 and 27,982.80 is: 41,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,718.80 : 73,078.20 = 27,982.80 : x
  2. Step 2: Convert to fraction form
    48,718.80/73,078.20 = 27,982.80/x
  3. Step 3: Cross multiply
    48,718.80x = 73,078.20 × 27,982.80
  4. Step 4: Simplify right side
    48,718.80x = 2,044,932,654.96
  5. Step 5: Solve for x
    x = 2,044,932,654.96/48,718.80
  6. Step 6: Final answer
    x = 41,974.20

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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.