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Finding the Third Proportional to 2,520 and 4,959

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Solution

The third proportional to 2,520 and 4,959 is: 9,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520 : 4,959 = 4,959 : x
  2. Step 2: Convert to fraction form
    2,520/4,959 = 4,959/x
  3. Step 3: Cross multiply
    2,520x = 4,959 × 4,959
  4. Step 4: Simplify right side
    2,520x = 24,591,681
  5. Step 5: Solve for x
    x = 24,591,681/2,520
  6. Step 6: Final answer
    x = 9,758.60

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.