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Finding the Fourth Proportional to 15,600.80, 23,401.20 and 11,248.80

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Solution

The fourth proportional to 15,600.80, 23,401.20 and 11,248.80 is: 16,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.80 : 23,401.20 = 11,248.80 : x
  2. Step 2: Convert to fraction form
    15,600.80/23,401.20 = 11,248.80/x
  3. Step 3: Cross multiply
    15,600.80x = 23,401.20 × 11,248.80
  4. Step 4: Simplify right side
    15,600.80x = 263,235,418.56
  5. Step 5: Solve for x
    x = 263,235,418.56/15,600.80
  6. Step 6: Final answer
    x = 16,873.20

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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.