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Finding the Fourth Proportional to 18,292, 25,248.72 and 11,668

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Solution

The fourth proportional to 18,292, 25,248.72 and 11,668 is: 16,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292 : 25,248.72 = 11,668 : x
  2. Step 2: Convert to fraction form
    18,292/25,248.72 = 11,668/x
  3. Step 3: Cross multiply
    18,292x = 25,248.72 × 11,668
  4. Step 4: Simplify right side
    18,292x = 294,602,064.96
  5. Step 5: Solve for x
    x = 294,602,064.96/18,292
  6. Step 6: Final answer
    x = 16,105.51

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