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Finding the Third Proportional to 26,979 and 40,648.50

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Solution

The third proportional to 26,979 and 40,648.50 is: 61,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979 : 40,648.50 = 40,648.50 : x
  2. Step 2: Convert to fraction form
    26,979/40,648.50 = 40,648.50/x
  3. Step 3: Cross multiply
    26,979x = 40,648.50 × 40,648.50
  4. Step 4: Simplify right side
    26,979x = 1,652,300,552.25
  5. Step 5: Solve for x
    x = 1,652,300,552.25/26,979
  6. Step 6: Final answer
    x = 61,243.95

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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.