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Finding the Fourth Proportional to 8,720.97, 13,057.49 and 6,091.11

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Solution

The fourth proportional to 8,720.97, 13,057.49 and 6,091.11 is: 9,119.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.97 : 13,057.49 = 6,091.11 : x
  2. Step 2: Convert to fraction form
    8,720.97/13,057.49 = 6,091.11/x
  3. Step 3: Cross multiply
    8,720.97x = 13,057.49 × 6,091.11
  4. Step 4: Simplify right side
    8,720.97x = 79,534,577.46
  5. Step 5: Solve for x
    x = 79,534,577.46/8,720.97
  6. Step 6: Final answer
    x = 9,119.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.