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Finding the Fourth Proportional to 65,340.56, 90,169.92 and 35,532.56

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Solution

The fourth proportional to 65,340.56, 90,169.92 and 35,532.56 is: 49,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,340.56 : 90,169.92 = 35,532.56 : x
  2. Step 2: Convert to fraction form
    65,340.56/90,169.92 = 35,532.56/x
  3. Step 3: Cross multiply
    65,340.56x = 90,169.92 × 35,532.56
  4. Step 4: Simplify right side
    65,340.56x = 3,203,968,092.60
  5. Step 5: Solve for x
    x = 3,203,968,092.60/65,340.56
  6. Step 6: Final answer
    x = 49,034.90

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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.