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Finding the Fourth Proportional to 40,019.52, 60,081.12 and 25,258.08

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Solution

The fourth proportional to 40,019.52, 60,081.12 and 25,258.08 is: 37,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,019.52 : 60,081.12 = 25,258.08 : x
  2. Step 2: Convert to fraction form
    40,019.52/60,081.12 = 25,258.08/x
  3. Step 3: Cross multiply
    40,019.52x = 60,081.12 × 25,258.08
  4. Step 4: Simplify right side
    40,019.52x = 1,517,533,735.45
  5. Step 5: Solve for x
    x = 1,517,533,735.45/40,019.52
  6. Step 6: Final answer
    x = 37,919.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.