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Finding the Fourth Proportional to 18,296.56, 25,248.61 and 10,338.61

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Solution

The fourth proportional to 18,296.56, 25,248.61 and 10,338.61 is: 14,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.56 : 25,248.61 = 10,338.61 : x
  2. Step 2: Convert to fraction form
    18,296.56/25,248.61 = 10,338.61/x
  3. Step 3: Cross multiply
    18,296.56x = 25,248.61 × 10,338.61
  4. Step 4: Simplify right side
    18,296.56x = 261,035,480.14
  5. Step 5: Solve for x
    x = 261,035,480.14/18,296.56
  6. Step 6: Final answer
    x = 14,266.92

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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.