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Finding the Third Proportional to 14,931 and 31,293

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Solution

The third proportional to 14,931 and 31,293 is: 65,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931 : 31,293 = 31,293 : x
  2. Step 2: Convert to fraction form
    14,931/31,293 = 31,293/x
  3. Step 3: Cross multiply
    14,931x = 31,293 × 31,293
  4. Step 4: Simplify right side
    14,931x = 979,251,849
  5. Step 5: Solve for x
    x = 979,251,849/14,931
  6. Step 6: Final answer
    x = 65,585.15

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.