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Finding the Fourth Proportional to 19,881.97, 29,822.97 and 9,344.26

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Solution

The fourth proportional to 19,881.97, 29,822.97 and 9,344.26 is: 14,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.97 : 29,822.97 = 9,344.26 : x
  2. Step 2: Convert to fraction form
    19,881.97/29,822.97 = 9,344.26/x
  3. Step 3: Cross multiply
    19,881.97x = 29,822.97 × 9,344.26
  4. Step 4: Simplify right side
    19,881.97x = 278,673,585.65
  5. Step 5: Solve for x
    x = 278,673,585.65/19,881.97
  6. Step 6: Final answer
    x = 14,016.40

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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.