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Finding the Fourth Proportional to 8,935.92, 13,404.62 and 3,389.26

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Solution

The fourth proportional to 8,935.92, 13,404.62 and 3,389.26 is: 5,084.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.92 : 13,404.62 = 3,389.26 : x
  2. Step 2: Convert to fraction form
    8,935.92/13,404.62 = 3,389.26/x
  3. Step 3: Cross multiply
    8,935.92x = 13,404.62 × 3,389.26
  4. Step 4: Simplify right side
    8,935.92x = 45,431,742.38
  5. Step 5: Solve for x
    x = 45,431,742.38/8,935.92
  6. Step 6: Final answer
    x = 5,084.17

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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.