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Finding the Fourth Proportional to 40,310.64, 60,462.72 and 25,476.30

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Solution

The fourth proportional to 40,310.64, 60,462.72 and 25,476.30 is: 38,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.64 : 60,462.72 = 25,476.30 : x
  2. Step 2: Convert to fraction form
    40,310.64/60,462.72 = 25,476.30/x
  3. Step 3: Cross multiply
    40,310.64x = 60,462.72 × 25,476.30
  4. Step 4: Simplify right side
    40,310.64x = 1,540,366,393.54
  5. Step 5: Solve for x
    x = 1,540,366,393.54/40,310.64
  6. Step 6: Final answer
    x = 38,212.40

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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.