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Finding the Fourth Proportional to 67,143.60, 100,693.83 and 22,154.88

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Solution

The fourth proportional to 67,143.60, 100,693.83 and 22,154.88 is: 33,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143.60 : 100,693.83 = 22,154.88 : x
  2. Step 2: Convert to fraction form
    67,143.60/100,693.83 = 22,154.88/x
  3. Step 3: Cross multiply
    67,143.60x = 100,693.83 × 22,154.88
  4. Step 4: Simplify right side
    67,143.60x = 2,230,859,720.39
  5. Step 5: Solve for x
    x = 2,230,859,720.39/67,143.60
  6. Step 6: Final answer
    x = 33,225.20

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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.