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Finding the Fourth Proportional to 45,721.26, 68,479.02 and 35,647.29

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Solution

The fourth proportional to 45,721.26, 68,479.02 and 35,647.29 is: 53,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.26 : 68,479.02 = 35,647.29 : x
  2. Step 2: Convert to fraction form
    45,721.26/68,479.02 = 35,647.29/x
  3. Step 3: Cross multiply
    45,721.26x = 68,479.02 × 35,647.29
  4. Step 4: Simplify right side
    45,721.26x = 2,441,091,484.86
  5. Step 5: Solve for x
    x = 2,441,091,484.86/45,721.26
  6. Step 6: Final answer
    x = 53,390.73

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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.