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Finding the Third Proportional to 55,275 and 85,068

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Solution

The third proportional to 55,275 and 85,068 is: 130,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275 : 85,068 = 85,068 : x
  2. Step 2: Convert to fraction form
    55,275/85,068 = 85,068/x
  3. Step 3: Cross multiply
    55,275x = 85,068 × 85,068
  4. Step 4: Simplify right side
    55,275x = 7,236,564,624
  5. Step 5: Solve for x
    x = 7,236,564,624/55,275
  6. Step 6: Final answer
    x = 130,919.31

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.