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Finding the Fourth Proportional to 67,021.60, 100,491.12 and 22,644.16

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Solution

The fourth proportional to 67,021.60, 100,491.12 and 22,644.16 is: 33,952.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,021.60 : 100,491.12 = 22,644.16 : x
  2. Step 2: Convert to fraction form
    67,021.60/100,491.12 = 22,644.16/x
  3. Step 3: Cross multiply
    67,021.60x = 100,491.12 × 22,644.16
  4. Step 4: Simplify right side
    67,021.60x = 2,275,536,999.86
  5. Step 5: Solve for x
    x = 2,275,536,999.86/67,021.60
  6. Step 6: Final answer
    x = 33,952.29

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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.