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Finding the Fourth Proportional to 63,646.86, 87,845.66 and 36,785.64

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Solution

The fourth proportional to 63,646.86, 87,845.66 and 36,785.64 is: 50,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,646.86 : 87,845.66 = 36,785.64 : x
  2. Step 2: Convert to fraction form
    63,646.86/87,845.66 = 36,785.64/x
  3. Step 3: Cross multiply
    63,646.86x = 87,845.66 × 36,785.64
  4. Step 4: Simplify right side
    63,646.86x = 3,231,458,824.32
  5. Step 5: Solve for x
    x = 3,231,458,824.32/63,646.86
  6. Step 6: Final answer
    x = 50,771.69

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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.