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Finding the Fourth Proportional to 67,130.10, 100,698.90 and 22,149.70

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Solution

The fourth proportional to 67,130.10, 100,698.90 and 22,149.70 is: 33,225.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,130.10 : 100,698.90 = 22,149.70 : x
  2. Step 2: Convert to fraction form
    67,130.10/100,698.90 = 22,149.70/x
  3. Step 3: Cross multiply
    67,130.10x = 100,698.90 × 22,149.70
  4. Step 4: Simplify right side
    67,130.10x = 2,230,450,425.33
  5. Step 5: Solve for x
    x = 2,230,450,425.33/67,130.10
  6. Step 6: Final answer
    x = 33,225.79

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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.