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Finding the Fourth Proportional to 18,774.52, 25,908.60 and 11,322.52

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Solution

The fourth proportional to 18,774.52, 25,908.60 and 11,322.52 is: 15,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.52 : 25,908.60 = 11,322.52 : x
  2. Step 2: Convert to fraction form
    18,774.52/25,908.60 = 11,322.52/x
  3. Step 3: Cross multiply
    18,774.52x = 25,908.60 × 11,322.52
  4. Step 4: Simplify right side
    18,774.52x = 293,350,641.67
  5. Step 5: Solve for x
    x = 293,350,641.67/18,774.52
  6. Step 6: Final answer
    x = 15,624.93

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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.