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Finding the Third Proportional to 52.88 and 127.13

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Solution

The third proportional to 52.88 and 127.13 is: 305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.88 : 127.13 = 127.13 : x
  2. Step 2: Convert to fraction form
    52.88/127.13 = 127.13/x
  3. Step 3: Cross multiply
    52.88x = 127.13 × 127.13
  4. Step 4: Simplify right side
    52.88x = 16,160.77
  5. Step 5: Solve for x
    x = 16,160.77/52.88
  6. Step 6: Final answer
    x = 305.64

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.