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Finding the Fourth Proportional to 79,797.28, 110,121 and 43,988.57

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Solution

The fourth proportional to 79,797.28, 110,121 and 43,988.57 is: 60,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,797.28 : 110,121 = 43,988.57 : x
  2. Step 2: Convert to fraction form
    79,797.28/110,121 = 43,988.57/x
  3. Step 3: Cross multiply
    79,797.28x = 110,121 × 43,988.57
  4. Step 4: Simplify right side
    79,797.28x = 4,844,065,592.27
  5. Step 5: Solve for x
    x = 4,844,065,592.27/79,797.28
  6. Step 6: Final answer
    x = 60,704.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.