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Finding the Fourth Proportional to 18,232.70, 25,161.12 and 9,849.20

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Solution

The fourth proportional to 18,232.70, 25,161.12 and 9,849.20 is: 13,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,232.70 : 25,161.12 = 9,849.20 : x
  2. Step 2: Convert to fraction form
    18,232.70/25,161.12 = 9,849.20/x
  3. Step 3: Cross multiply
    18,232.70x = 25,161.12 × 9,849.20
  4. Step 4: Simplify right side
    18,232.70x = 247,816,903.10
  5. Step 5: Solve for x
    x = 247,816,903.10/18,232.70
  6. Step 6: Final answer
    x = 13,591.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.