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Finding the Fourth Proportional to 40,401.68, 60,627.76 and 15,443.84

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Solution

The fourth proportional to 40,401.68, 60,627.76 and 15,443.84 is: 23,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,401.68 : 60,627.76 = 15,443.84 : x
  2. Step 2: Convert to fraction form
    40,401.68/60,627.76 = 15,443.84/x
  3. Step 3: Cross multiply
    40,401.68x = 60,627.76 × 15,443.84
  4. Step 4: Simplify right side
    40,401.68x = 936,325,425.00
  5. Step 5: Solve for x
    x = 936,325,425.00/40,401.68
  6. Step 6: Final answer
    x = 23,175.41

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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.