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Finding the Third Proportional to 58.69 and 91.88

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Solution

The third proportional to 58.69 and 91.88 is: 143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.69 : 91.88 = 91.88 : x
  2. Step 2: Convert to fraction form
    58.69/91.88 = 91.88/x
  3. Step 3: Cross multiply
    58.69x = 91.88 × 91.88
  4. Step 4: Simplify right side
    58.69x = 8,441.02
  5. Step 5: Solve for x
    x = 8,441.02/58.69
  6. Step 6: Final answer
    x = 143.83

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.