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Finding the Third Proportional to 4,917 and 5,605.50

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Solution

The third proportional to 4,917 and 5,605.50 is: 6,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917 : 5,605.50 = 5,605.50 : x
  2. Step 2: Convert to fraction form
    4,917/5,605.50 = 5,605.50/x
  3. Step 3: Cross multiply
    4,917x = 5,605.50 × 5,605.50
  4. Step 4: Simplify right side
    4,917x = 31,421,630.25
  5. Step 5: Solve for x
    x = 31,421,630.25/4,917
  6. Step 6: Final answer
    x = 6,390.41

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.