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Finding the Third Proportional to 55.48 and 83.32

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Solution

The third proportional to 55.48 and 83.32 is: 125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.48 : 83.32 = 83.32 : x
  2. Step 2: Convert to fraction form
    55.48/83.32 = 83.32/x
  3. Step 3: Cross multiply
    55.48x = 83.32 × 83.32
  4. Step 4: Simplify right side
    55.48x = 6,942.27
  5. Step 5: Solve for x
    x = 6,942.27/55.48
  6. Step 6: Final answer
    x = 125.14

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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.