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Finding the Third Proportional to 4,142 and 9,013

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Solution

The third proportional to 4,142 and 9,013 is: 19,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142 : 9,013 = 9,013 : x
  2. Step 2: Convert to fraction form
    4,142/9,013 = 9,013/x
  3. Step 3: Cross multiply
    4,142x = 9,013 × 9,013
  4. Step 4: Simplify right side
    4,142x = 81,234,169
  5. Step 5: Solve for x
    x = 81,234,169/4,142
  6. Step 6: Final answer
    x = 19,612.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.