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Finding the Fourth Proportional to 18,294.65, 25,248.12 and 10,338.39

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Solution

The fourth proportional to 18,294.65, 25,248.12 and 10,338.39 is: 14,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.65 : 25,248.12 = 10,338.39 : x
  2. Step 2: Convert to fraction form
    18,294.65/25,248.12 = 10,338.39/x
  3. Step 3: Cross multiply
    18,294.65x = 25,248.12 × 10,338.39
  4. Step 4: Simplify right side
    18,294.65x = 261,024,911.33
  5. Step 5: Solve for x
    x = 261,024,911.33/18,294.65
  6. Step 6: Final answer
    x = 14,267.83

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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.