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Finding the Fourth Proportional to 40,341.20, 60,576.60 and 30,491.60

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Solution

The fourth proportional to 40,341.20, 60,576.60 and 30,491.60 is: 45,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,341.20 : 60,576.60 = 30,491.60 : x
  2. Step 2: Convert to fraction form
    40,341.20/60,576.60 = 30,491.60/x
  3. Step 3: Cross multiply
    40,341.20x = 60,576.60 × 30,491.60
  4. Step 4: Simplify right side
    40,341.20x = 1,847,077,456.56
  5. Step 5: Solve for x
    x = 1,847,077,456.56/40,341.20
  6. Step 6: Final answer
    x = 45,786.38

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1.5x scale

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.