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Finding the Third Proportional to 51,279.75 and 77,603.06

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Solution

The third proportional to 51,279.75 and 77,603.06 is: 117,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.75 : 77,603.06 = 77,603.06 : x
  2. Step 2: Convert to fraction form
    51,279.75/77,603.06 = 77,603.06/x
  3. Step 3: Cross multiply
    51,279.75x = 77,603.06 × 77,603.06
  4. Step 4: Simplify right side
    51,279.75x = 6,022,235,309.38
  5. Step 5: Solve for x
    x = 6,022,235,309.38/51,279.75
  6. Step 6: Final answer
    x = 117,438.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.