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Finding the Third Proportional to 557 and 1,514

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Solution

The third proportional to 557 and 1,514 is: 4,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    557 : 1,514 = 1,514 : x
  2. Step 2: Convert to fraction form
    557/1,514 = 1,514/x
  3. Step 3: Cross multiply
    557x = 1,514 × 1,514
  4. Step 4: Simplify right side
    557x = 2,292,196
  5. Step 5: Solve for x
    x = 2,292,196/557
  6. Step 6: Final answer
    x = 4,115.25

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.