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Finding the Fourth Proportional to 45,865.62, 68,487.84 and 36,399.42

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Solution

The fourth proportional to 45,865.62, 68,487.84 and 36,399.42 is: 54,352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,865.62 : 68,487.84 = 36,399.42 : x
  2. Step 2: Convert to fraction form
    45,865.62/68,487.84 = 36,399.42/x
  3. Step 3: Cross multiply
    45,865.62x = 68,487.84 × 36,399.42
  4. Step 4: Simplify right side
    45,865.62x = 2,492,917,653.05
  5. Step 5: Solve for x
    x = 2,492,917,653.05/45,865.62
  6. Step 6: Final answer
    x = 54,352.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.