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Finding the Fourth Proportional to 40,494.40, 60,712.80 and 15,524.80

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Solution

The fourth proportional to 40,494.40, 60,712.80 and 15,524.80 is: 23,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,494.40 : 60,712.80 = 15,524.80 : x
  2. Step 2: Convert to fraction form
    40,494.40/60,712.80 = 15,524.80/x
  3. Step 3: Cross multiply
    40,494.40x = 60,712.80 × 15,524.80
  4. Step 4: Simplify right side
    40,494.40x = 942,554,077.44
  5. Step 5: Solve for x
    x = 942,554,077.44/40,494.40
  6. Step 6: Final answer
    x = 23,276.16

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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.