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Finding the Fourth Proportional to 40,424.80, 60,637.20 and 29,927.20

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Solution

The fourth proportional to 40,424.80, 60,637.20 and 29,927.20 is: 44,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,424.80 : 60,637.20 = 29,927.20 : x
  2. Step 2: Convert to fraction form
    40,424.80/60,637.20 = 29,927.20/x
  3. Step 3: Cross multiply
    40,424.80x = 60,637.20 × 29,927.20
  4. Step 4: Simplify right side
    40,424.80x = 1,814,701,611.84
  5. Step 5: Solve for x
    x = 1,814,701,611.84/40,424.80
  6. Step 6: Final answer
    x = 44,890.80

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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.