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Finding the Fourth Proportional to 40,872.20, 61,275.90 and 22,404.20

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Solution

The fourth proportional to 40,872.20, 61,275.90 and 22,404.20 is: 33,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,872.20 : 61,275.90 = 22,404.20 : x
  2. Step 2: Convert to fraction form
    40,872.20/61,275.90 = 22,404.20/x
  3. Step 3: Cross multiply
    40,872.20x = 61,275.90 × 22,404.20
  4. Step 4: Simplify right side
    40,872.20x = 1,372,837,518.78
  5. Step 5: Solve for x
    x = 1,372,837,518.78/40,872.20
  6. Step 6: Final answer
    x = 33,588.54

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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.