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Finding the Fourth Proportional to 40,212.80, 60,319.20 and 29,844.80

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Solution

The fourth proportional to 40,212.80, 60,319.20 and 29,844.80 is: 44,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,212.80 : 60,319.20 = 29,844.80 : x
  2. Step 2: Convert to fraction form
    40,212.80/60,319.20 = 29,844.80/x
  3. Step 3: Cross multiply
    40,212.80x = 60,319.20 × 29,844.80
  4. Step 4: Simplify right side
    40,212.80x = 1,800,214,460.16
  5. Step 5: Solve for x
    x = 1,800,214,460.16/40,212.80
  6. Step 6: Final answer
    x = 44,767.20

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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.