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Finding the Third Proportional to 7,042 and 14,981

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Solution

The third proportional to 7,042 and 14,981 is: 31,870.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042 : 14,981 = 14,981 : x
  2. Step 2: Convert to fraction form
    7,042/14,981 = 14,981/x
  3. Step 3: Cross multiply
    7,042x = 14,981 × 14,981
  4. Step 4: Simplify right side
    7,042x = 224,430,361
  5. Step 5: Solve for x
    x = 224,430,361/7,042
  6. Step 6: Final answer
    x = 31,870.26

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.