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Finding the Fourth Proportional to 11,090.17, 15,290.82 and 6,891.13

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Solution

The fourth proportional to 11,090.17, 15,290.82 and 6,891.13 is: 9,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.17 : 15,290.82 = 6,891.13 : x
  2. Step 2: Convert to fraction form
    11,090.17/15,290.82 = 6,891.13/x
  3. Step 3: Cross multiply
    11,090.17x = 15,290.82 × 6,891.13
  4. Step 4: Simplify right side
    11,090.17x = 105,371,028.43
  5. Step 5: Solve for x
    x = 105,371,028.43/11,090.17
  6. Step 6: Final answer
    x = 9,501.30

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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.