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Finding the Third Proportional to 28,645.88 and 61,679.81

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Solution

The third proportional to 28,645.88 and 61,679.81 is: 132,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.88 : 61,679.81 = 61,679.81 : x
  2. Step 2: Convert to fraction form
    28,645.88/61,679.81 = 61,679.81/x
  3. Step 3: Cross multiply
    28,645.88x = 61,679.81 × 61,679.81
  4. Step 4: Simplify right side
    28,645.88x = 3,804,399,270.04
  5. Step 5: Solve for x
    x = 3,804,399,270.04/28,645.88
  6. Step 6: Final answer
    x = 132,807.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.