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Finding the Fourth Proportional to 9,086.71, 13,631.89 and 3,243.17

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Solution

The fourth proportional to 9,086.71, 13,631.89 and 3,243.17 is: 4,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,086.71 : 13,631.89 = 3,243.17 : x
  2. Step 2: Convert to fraction form
    9,086.71/13,631.89 = 3,243.17/x
  3. Step 3: Cross multiply
    9,086.71x = 13,631.89 × 3,243.17
  4. Step 4: Simplify right side
    9,086.71x = 44,210,472.59
  5. Step 5: Solve for x
    x = 44,210,472.59/9,086.71
  6. Step 6: Final answer
    x = 4,865.40

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Why These Related Problems?

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