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Finding the Fourth Proportional to 40,324.70, 60,486.98 and 10,742.64

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Solution

The fourth proportional to 40,324.70, 60,486.98 and 10,742.64 is: 16,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,324.70 : 60,486.98 = 10,742.64 : x
  2. Step 2: Convert to fraction form
    40,324.70/60,486.98 = 10,742.64/x
  3. Step 3: Cross multiply
    40,324.70x = 60,486.98 × 10,742.64
  4. Step 4: Simplify right side
    40,324.70x = 649,789,850.83
  5. Step 5: Solve for x
    x = 649,789,850.83/40,324.70
  6. Step 6: Final answer
    x = 16,113.94

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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.