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Finding the Third Proportional to 3,135.50 and 6,688

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Solution

The third proportional to 3,135.50 and 6,688 is: 14,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.50 : 6,688 = 6,688 : x
  2. Step 2: Convert to fraction form
    3,135.50/6,688 = 6,688/x
  3. Step 3: Cross multiply
    3,135.50x = 6,688 × 6,688
  4. Step 4: Simplify right side
    3,135.50x = 44,729,344
  5. Step 5: Solve for x
    x = 44,729,344/3,135.50
  6. Step 6: Final answer
    x = 14,265.46

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.