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Finding the Third Proportional to 27,079.50 and 40,620

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Solution

The third proportional to 27,079.50 and 40,620 is: 60,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.50 : 40,620 = 40,620 : x
  2. Step 2: Convert to fraction form
    27,079.50/40,620 = 40,620/x
  3. Step 3: Cross multiply
    27,079.50x = 40,620 × 40,620
  4. Step 4: Simplify right side
    27,079.50x = 1,649,984,400
  5. Step 5: Solve for x
    x = 1,649,984,400/27,079.50
  6. Step 6: Final answer
    x = 60,931.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.