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Finding the Third Proportional to 14,618 and 31,517

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Solution

The third proportional to 14,618 and 31,517 is: 67,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618 : 31,517 = 31,517 : x
  2. Step 2: Convert to fraction form
    14,618/31,517 = 31,517/x
  3. Step 3: Cross multiply
    14,618x = 31,517 × 31,517
  4. Step 4: Simplify right side
    14,618x = 993,321,289
  5. Step 5: Solve for x
    x = 993,321,289/14,618
  6. Step 6: Final answer
    x = 67,951.93

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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.