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Finding the Fourth Proportional to 67,145.74, 100,728.18 and 25,022.22

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Solution

The fourth proportional to 67,145.74, 100,728.18 and 25,022.22 is: 37,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145.74 : 100,728.18 = 25,022.22 : x
  2. Step 2: Convert to fraction form
    67,145.74/100,728.18 = 25,022.22/x
  3. Step 3: Cross multiply
    67,145.74x = 100,728.18 × 25,022.22
  4. Step 4: Simplify right side
    67,145.74x = 2,520,442,680.16
  5. Step 5: Solve for x
    x = 2,520,442,680.16/67,145.74
  6. Step 6: Final answer
    x = 37,536.90

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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.