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Finding the Third Proportional to 14,670 and 19,931

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Solution

The third proportional to 14,670 and 19,931 is: 27,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670 : 19,931 = 19,931 : x
  2. Step 2: Convert to fraction form
    14,670/19,931 = 19,931/x
  3. Step 3: Cross multiply
    14,670x = 19,931 × 19,931
  4. Step 4: Simplify right side
    14,670x = 397,244,761
  5. Step 5: Solve for x
    x = 397,244,761/14,670
  6. Step 6: Final answer
    x = 27,078.72

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.