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Finding the Third Proportional to 1,418 and 1,730

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Solution

The third proportional to 1,418 and 1,730 is: 2,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418 : 1,730 = 1,730 : x
  2. Step 2: Convert to fraction form
    1,418/1,730 = 1,730/x
  3. Step 3: Cross multiply
    1,418x = 1,730 × 1,730
  4. Step 4: Simplify right side
    1,418x = 2,992,900
  5. Step 5: Solve for x
    x = 2,992,900/1,418
  6. Step 6: Final answer
    x = 2,110.65

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.