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Finding the Fourth Proportional to 9,887.34, 13,639.92 and 5,693.16

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Solution

The fourth proportional to 9,887.34, 13,639.92 and 5,693.16 is: 7,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887.34 : 13,639.92 = 5,693.16 : x
  2. Step 2: Convert to fraction form
    9,887.34/13,639.92 = 5,693.16/x
  3. Step 3: Cross multiply
    9,887.34x = 13,639.92 × 5,693.16
  4. Step 4: Simplify right side
    9,887.34x = 77,654,246.95
  5. Step 5: Solve for x
    x = 77,654,246.95/9,887.34
  6. Step 6: Final answer
    x = 7,853.91

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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.