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Finding the Fourth Proportional to 84,112.72, 126,169.60 and 24,948.88

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Solution

The fourth proportional to 84,112.72, 126,169.60 and 24,948.88 is: 37,423.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,112.72 : 126,169.60 = 24,948.88 : x
  2. Step 2: Convert to fraction form
    84,112.72/126,169.60 = 24,948.88/x
  3. Step 3: Cross multiply
    84,112.72x = 126,169.60 × 24,948.88
  4. Step 4: Simplify right side
    84,112.72x = 3,147,790,210.05
  5. Step 5: Solve for x
    x = 3,147,790,210.05/84,112.72
  6. Step 6: Final answer
    x = 37,423.47

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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.