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Finding the Third Proportional to 6,648.75 and 14,388.75

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Solution

The third proportional to 6,648.75 and 14,388.75 is: 31,139.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.75 : 14,388.75 = 14,388.75 : x
  2. Step 2: Convert to fraction form
    6,648.75/14,388.75 = 14,388.75/x
  3. Step 3: Cross multiply
    6,648.75x = 14,388.75 × 14,388.75
  4. Step 4: Simplify right side
    6,648.75x = 207,036,126.56
  5. Step 5: Solve for x
    x = 207,036,126.56/6,648.75
  6. Step 6: Final answer
    x = 31,139.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.