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Finding the Fourth Proportional to 63,685.70, 87,879.28 and 36,824.14

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Solution

The fourth proportional to 63,685.70, 87,879.28 and 36,824.14 is: 50,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,685.70 : 87,879.28 = 36,824.14 : x
  2. Step 2: Convert to fraction form
    63,685.70/87,879.28 = 36,824.14/x
  3. Step 3: Cross multiply
    63,685.70x = 87,879.28 × 36,824.14
  4. Step 4: Simplify right side
    63,685.70x = 3,236,078,286.30
  5. Step 5: Solve for x
    x = 3,236,078,286.30/63,685.70
  6. Step 6: Final answer
    x = 50,813.27

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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.