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Finding the Fourth Proportional to 27,658.80, 41,488.20 and 25,520.40

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Solution

The fourth proportional to 27,658.80, 41,488.20 and 25,520.40 is: 38,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658.80 : 41,488.20 = 25,520.40 : x
  2. Step 2: Convert to fraction form
    27,658.80/41,488.20 = 25,520.40/x
  3. Step 3: Cross multiply
    27,658.80x = 41,488.20 × 25,520.40
  4. Step 4: Simplify right side
    27,658.80x = 1,058,795,459.28
  5. Step 5: Solve for x
    x = 1,058,795,459.28/27,658.80
  6. Step 6: Final answer
    x = 38,280.60

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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.