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Finding the Third Proportional to 52.95 and 79.47

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Solution

The third proportional to 52.95 and 79.47 is: 119.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.95 : 79.47 = 79.47 : x
  2. Step 2: Convert to fraction form
    52.95/79.47 = 79.47/x
  3. Step 3: Cross multiply
    52.95x = 79.47 × 79.47
  4. Step 4: Simplify right side
    52.95x = 6,315.59
  5. Step 5: Solve for x
    x = 6,315.59/52.95
  6. Step 6: Final answer
    x = 119.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.