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Finding the Third Proportional to 9,940 and 16,854

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Solution

The third proportional to 9,940 and 16,854 is: 28,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940 : 16,854 = 16,854 : x
  2. Step 2: Convert to fraction form
    9,940/16,854 = 16,854/x
  3. Step 3: Cross multiply
    9,940x = 16,854 × 16,854
  4. Step 4: Simplify right side
    9,940x = 284,057,316
  5. Step 5: Solve for x
    x = 284,057,316/9,940
  6. Step 6: Final answer
    x = 28,577.19

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.