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Finding the Fourth Proportional to 64,485.44, 88,993.86 and 36,191.13

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Solution

The fourth proportional to 64,485.44, 88,993.86 and 36,191.13 is: 49,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,485.44 : 88,993.86 = 36,191.13 : x
  2. Step 2: Convert to fraction form
    64,485.44/88,993.86 = 36,191.13/x
  3. Step 3: Cross multiply
    64,485.44x = 88,993.86 × 36,191.13
  4. Step 4: Simplify right side
    64,485.44x = 3,220,787,730.54
  5. Step 5: Solve for x
    x = 3,220,787,730.54/64,485.44
  6. Step 6: Final answer
    x = 49,945.97

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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.