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Finding the Fourth Proportional to 64,380.81, 88,850.99 and 36,091.97

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Solution

The fourth proportional to 64,380.81, 88,850.99 and 36,091.97 is: 49,809.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,380.81 : 88,850.99 = 36,091.97 : x
  2. Step 2: Convert to fraction form
    64,380.81/88,850.99 = 36,091.97/x
  3. Step 3: Cross multiply
    64,380.81x = 88,850.99 × 36,091.97
  4. Step 4: Simplify right side
    64,380.81x = 3,206,807,265.55
  5. Step 5: Solve for x
    x = 3,206,807,265.55/64,380.81
  6. Step 6: Final answer
    x = 49,809.99

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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.