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Finding the Fourth Proportional to 40,529.80, 60,721.80 and 34,697.80

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Solution

The fourth proportional to 40,529.80, 60,721.80 and 34,697.80 is: 51,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,529.80 : 60,721.80 = 34,697.80 : x
  2. Step 2: Convert to fraction form
    40,529.80/60,721.80 = 34,697.80/x
  3. Step 3: Cross multiply
    40,529.80x = 60,721.80 × 34,697.80
  4. Step 4: Simplify right side
    40,529.80x = 2,106,912,872.04
  5. Step 5: Solve for x
    x = 2,106,912,872.04/40,529.80
  6. Step 6: Final answer
    x = 51,984.29

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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.