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Finding the Fourth Proportional to 15,595.20, 23,344.20 and 11,221.20

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Solution

The fourth proportional to 15,595.20, 23,344.20 and 11,221.20 is: 16,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.20 : 23,344.20 = 11,221.20 : x
  2. Step 2: Convert to fraction form
    15,595.20/23,344.20 = 11,221.20/x
  3. Step 3: Cross multiply
    15,595.20x = 23,344.20 × 11,221.20
  4. Step 4: Simplify right side
    15,595.20x = 261,949,937.04
  5. Step 5: Solve for x
    x = 261,949,937.04/15,595.20
  6. Step 6: Final answer
    x = 16,796.83

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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.