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Finding the Third Proportional to 14,417 and 31,138

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Solution

The third proportional to 14,417 and 31,138 is: 67,252.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,417 : 31,138 = 31,138 : x
  2. Step 2: Convert to fraction form
    14,417/31,138 = 31,138/x
  3. Step 3: Cross multiply
    14,417x = 31,138 × 31,138
  4. Step 4: Simplify right side
    14,417x = 969,575,044
  5. Step 5: Solve for x
    x = 969,575,044/14,417
  6. Step 6: Final answer
    x = 67,252.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.