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Finding the Third Proportional to 91.13 and 175.08

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Solution

The third proportional to 91.13 and 175.08 is: 336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.13 : 175.08 = 175.08 : x
  2. Step 2: Convert to fraction form
    91.13/175.08 = 175.08/x
  3. Step 3: Cross multiply
    91.13x = 175.08 × 175.08
  4. Step 4: Simplify right side
    91.13x = 30,652.35
  5. Step 5: Solve for x
    x = 30,652.35/91.13
  6. Step 6: Final answer
    x = 336.38

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.