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Finding the Third Proportional to 929 and 1,423

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Solution

The third proportional to 929 and 1,423 is: 2,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    929 : 1,423 = 1,423 : x
  2. Step 2: Convert to fraction form
    929/1,423 = 1,423/x
  3. Step 3: Cross multiply
    929x = 1,423 × 1,423
  4. Step 4: Simplify right side
    929x = 2,024,929
  5. Step 5: Solve for x
    x = 2,024,929/929
  6. Step 6: Final answer
    x = 2,179.69

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.