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Finding the Third Proportional to 4.75 and 7.59

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Solution

The third proportional to 4.75 and 7.59 is: 12.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.75 : 7.59 = 7.59 : x
  2. Step 2: Convert to fraction form
    4.75/7.59 = 7.59/x
  3. Step 3: Cross multiply
    4.75x = 7.59 × 7.59
  4. Step 4: Simplify right side
    4.75x = 57.67
  5. Step 5: Solve for x
    x = 57.67/4.75
  6. Step 6: Final answer
    x = 12.15

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.