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Finding the Third Proportional to 4,243.88 and 9,141

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Solution

The third proportional to 4,243.88 and 9,141 is: 19,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.88 : 9,141 = 9,141 : x
  2. Step 2: Convert to fraction form
    4,243.88/9,141 = 9,141/x
  3. Step 3: Cross multiply
    4,243.88x = 9,141 × 9,141
  4. Step 4: Simplify right side
    4,243.88x = 83,557,881
  5. Step 5: Solve for x
    x = 83,557,881/4,243.88
  6. Step 6: Final answer
    x = 19,689.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.