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Finding the Fourth Proportional to 63,921.76, 88,212.48 and 36,690.60

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Solution

The fourth proportional to 63,921.76, 88,212.48 and 36,690.60 is: 50,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,921.76 : 88,212.48 = 36,690.60 : x
  2. Step 2: Convert to fraction form
    63,921.76/88,212.48 = 36,690.60/x
  3. Step 3: Cross multiply
    63,921.76x = 88,212.48 × 36,690.60
  4. Step 4: Simplify right side
    63,921.76x = 3,236,568,818.69
  5. Step 5: Solve for x
    x = 3,236,568,818.69/63,921.76
  6. Step 6: Final answer
    x = 50,633.29

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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.