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Finding the Fourth Proportional to 12,065.20, 18,076.20 and 10,337.20

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Solution

The fourth proportional to 12,065.20, 18,076.20 and 10,337.20 is: 15,487.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.20 : 18,076.20 = 10,337.20 : x
  2. Step 2: Convert to fraction form
    12,065.20/18,076.20 = 10,337.20/x
  3. Step 3: Cross multiply
    12,065.20x = 18,076.20 × 10,337.20
  4. Step 4: Simplify right side
    12,065.20x = 186,857,294.64
  5. Step 5: Solve for x
    x = 186,857,294.64/12,065.20
  6. Step 6: Final answer
    x = 15,487.29

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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.