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Finding the Third Proportional to 5,335.88 and 6,378.75

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Solution

The third proportional to 5,335.88 and 6,378.75 is: 7,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.88 : 6,378.75 = 6,378.75 : x
  2. Step 2: Convert to fraction form
    5,335.88/6,378.75 = 6,378.75/x
  3. Step 3: Cross multiply
    5,335.88x = 6,378.75 × 6,378.75
  4. Step 4: Simplify right side
    5,335.88x = 40,688,451.56
  5. Step 5: Solve for x
    x = 40,688,451.56/5,335.88
  6. Step 6: Final answer
    x = 7,625.45

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.