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Finding the Fourth Proportional to 13,363.20, 20,044.80 and 13,168.80

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Solution

The fourth proportional to 13,363.20, 20,044.80 and 13,168.80 is: 19,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.20 : 20,044.80 = 13,168.80 : x
  2. Step 2: Convert to fraction form
    13,363.20/20,044.80 = 13,168.80/x
  3. Step 3: Cross multiply
    13,363.20x = 20,044.80 × 13,168.80
  4. Step 4: Simplify right side
    13,363.20x = 263,965,962.24
  5. Step 5: Solve for x
    x = 263,965,962.24/13,363.20
  6. Step 6: Final answer
    x = 19,753.20

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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.