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Finding the Third Proportional to 2,959 and 6,417.75

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Solution

The third proportional to 2,959 and 6,417.75 is: 13,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959 : 6,417.75 = 6,417.75 : x
  2. Step 2: Convert to fraction form
    2,959/6,417.75 = 6,417.75/x
  3. Step 3: Cross multiply
    2,959x = 6,417.75 × 6,417.75
  4. Step 4: Simplify right side
    2,959x = 41,187,515.06
  5. Step 5: Solve for x
    x = 41,187,515.06/2,959
  6. Step 6: Final answer
    x = 13,919.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.