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Finding the Third Proportional to 58.13 and 84.75

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Solution

The third proportional to 58.13 and 84.75 is: 123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.13 : 84.75 = 84.75 : x
  2. Step 2: Convert to fraction form
    58.13/84.75 = 84.75/x
  3. Step 3: Cross multiply
    58.13x = 84.75 × 84.75
  4. Step 4: Simplify right side
    58.13x = 7,182.56
  5. Step 5: Solve for x
    x = 7,182.56/58.13
  6. Step 6: Final answer
    x = 123.57

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.