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Finding the Third Proportional to 49.13 and 76.50

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Solution

The third proportional to 49.13 and 76.50 is: 119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.13 : 76.50 = 76.50 : x
  2. Step 2: Convert to fraction form
    49.13/76.50 = 76.50/x
  3. Step 3: Cross multiply
    49.13x = 76.50 × 76.50
  4. Step 4: Simplify right side
    49.13x = 5,852.25
  5. Step 5: Solve for x
    x = 5,852.25/49.13
  6. Step 6: Final answer
    x = 119.13

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.