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Finding the Third Proportional to 9,919.13 and 16,508.81

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Solution

The third proportional to 9,919.13 and 16,508.81 is: 27,476.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.13 : 16,508.81 = 16,508.81 : x
  2. Step 2: Convert to fraction form
    9,919.13/16,508.81 = 16,508.81/x
  3. Step 3: Cross multiply
    9,919.13x = 16,508.81 × 16,508.81
  4. Step 4: Simplify right side
    9,919.13x = 272,540,890.16
  5. Step 5: Solve for x
    x = 272,540,890.16/9,919.13
  6. Step 6: Final answer
    x = 27,476.30

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.