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Finding the Third Proportional to 2,773.88 and 4,217.63

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Solution

The third proportional to 2,773.88 and 4,217.63 is: 6,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.88 : 4,217.63 = 4,217.63 : x
  2. Step 2: Convert to fraction form
    2,773.88/4,217.63 = 4,217.63/x
  3. Step 3: Cross multiply
    2,773.88x = 4,217.63 × 4,217.63
  4. Step 4: Simplify right side
    2,773.88x = 17,788,360.64
  5. Step 5: Solve for x
    x = 17,788,360.64/2,773.88
  6. Step 6: Final answer
    x = 6,412.82

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.