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Finding the Fourth Proportional to 11,667.68, 16,082.08 and 8,260.28

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Solution

The fourth proportional to 11,667.68, 16,082.08 and 8,260.28 is: 11,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,667.68 : 16,082.08 = 8,260.28 : x
  2. Step 2: Convert to fraction form
    11,667.68/16,082.08 = 8,260.28/x
  3. Step 3: Cross multiply
    11,667.68x = 16,082.08 × 8,260.28
  4. Step 4: Simplify right side
    11,667.68x = 132,842,483.78
  5. Step 5: Solve for x
    x = 132,842,483.78/11,667.68
  6. Step 6: Final answer
    x = 11,385.51

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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.