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Finding the Fourth Proportional to 24,508.80, 36,763.20 and 18,979.20

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Solution

The fourth proportional to 24,508.80, 36,763.20 and 18,979.20 is: 28,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,508.80 : 36,763.20 = 18,979.20 : x
  2. Step 2: Convert to fraction form
    24,508.80/36,763.20 = 18,979.20/x
  3. Step 3: Cross multiply
    24,508.80x = 36,763.20 × 18,979.20
  4. Step 4: Simplify right side
    24,508.80x = 697,736,125.44
  5. Step 5: Solve for x
    x = 697,736,125.44/24,508.80
  6. Step 6: Final answer
    x = 28,468.80

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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.