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Finding the Third Proportional to 10,742 and 14,438

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Solution

The third proportional to 10,742 and 14,438 is: 19,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742 : 14,438 = 14,438 : x
  2. Step 2: Convert to fraction form
    10,742/14,438 = 14,438/x
  3. Step 3: Cross multiply
    10,742x = 14,438 × 14,438
  4. Step 4: Simplify right side
    10,742x = 208,455,844
  5. Step 5: Solve for x
    x = 208,455,844/10,742
  6. Step 6: Final answer
    x = 19,405.68

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.