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Finding the Fourth Proportional to 15,187.46, 20,945.06 and 9,522.82

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Solution

The fourth proportional to 15,187.46, 20,945.06 and 9,522.82 is: 13,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.46 : 20,945.06 = 9,522.82 : x
  2. Step 2: Convert to fraction form
    15,187.46/20,945.06 = 9,522.82/x
  3. Step 3: Cross multiply
    15,187.46x = 20,945.06 × 9,522.82
  4. Step 4: Simplify right side
    15,187.46x = 199,456,036.27
  5. Step 5: Solve for x
    x = 199,456,036.27/15,187.46
  6. Step 6: Final answer
    x = 13,132.95

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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.