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Finding the Fourth Proportional to 64,993.28, 89,696.22 and 36,704.12

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Solution

The fourth proportional to 64,993.28, 89,696.22 and 36,704.12 is: 50,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,993.28 : 89,696.22 = 36,704.12 : x
  2. Step 2: Convert to fraction form
    64,993.28/89,696.22 = 36,704.12/x
  3. Step 3: Cross multiply
    64,993.28x = 89,696.22 × 36,704.12
  4. Step 4: Simplify right side
    64,993.28x = 3,292,220,822.43
  5. Step 5: Solve for x
    x = 3,292,220,822.43/64,993.28
  6. Step 6: Final answer
    x = 50,654.79

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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.