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Finding the Third Proportional to 27,220.50 and 40,989.38

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Solution

The third proportional to 27,220.50 and 40,989.38 is: 61,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.50 : 40,989.38 = 40,989.38 : x
  2. Step 2: Convert to fraction form
    27,220.50/40,989.38 = 40,989.38/x
  3. Step 3: Cross multiply
    27,220.50x = 40,989.38 × 40,989.38
  4. Step 4: Simplify right side
    27,220.50x = 1,680,128,862.89
  5. Step 5: Solve for x
    x = 1,680,128,862.89/27,220.50
  6. Step 6: Final answer
    x = 61,722.92

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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.