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Finding the Fourth Proportional to 15,822.40, 23,737.20 and 9,245.20

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Solution

The fourth proportional to 15,822.40, 23,737.20 and 9,245.20 is: 13,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.40 : 23,737.20 = 9,245.20 : x
  2. Step 2: Convert to fraction form
    15,822.40/23,737.20 = 9,245.20/x
  3. Step 3: Cross multiply
    15,822.40x = 23,737.20 × 9,245.20
  4. Step 4: Simplify right side
    15,822.40x = 219,455,161.44
  5. Step 5: Solve for x
    x = 219,455,161.44/15,822.40
  6. Step 6: Final answer
    x = 13,869.90

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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.