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Finding the Fourth Proportional to 40,357.60, 55,693.32 and 22,454.32

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Solution

The fourth proportional to 40,357.60, 55,693.32 and 22,454.32 is: 30,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,357.60 : 55,693.32 = 22,454.32 : x
  2. Step 2: Convert to fraction form
    40,357.60/55,693.32 = 22,454.32/x
  3. Step 3: Cross multiply
    40,357.60x = 55,693.32 × 22,454.32
  4. Step 4: Simplify right side
    40,357.60x = 1,250,555,629.14
  5. Step 5: Solve for x
    x = 1,250,555,629.14/40,357.60
  6. Step 6: Final answer
    x = 30,986.87

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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.