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Finding the Third Proportional to 3,403.90 and 4,772.67

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Solution

The third proportional to 3,403.90 and 4,772.67 is: 6,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.90 : 4,772.67 = 4,772.67 : x
  2. Step 2: Convert to fraction form
    3,403.90/4,772.67 = 4,772.67/x
  3. Step 3: Cross multiply
    3,403.90x = 4,772.67 × 4,772.67
  4. Step 4: Simplify right side
    3,403.90x = 22,778,396.83
  5. Step 5: Solve for x
    x = 22,778,396.83/3,403.90
  6. Step 6: Final answer
    x = 6,691.86

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.