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Finding the Fourth Proportional to 64,072, 88,418.45 and 37,229.61

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Solution

The fourth proportional to 64,072, 88,418.45 and 37,229.61 is: 51,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,072 : 88,418.45 = 37,229.61 : x
  2. Step 2: Convert to fraction form
    64,072/88,418.45 = 37,229.61/x
  3. Step 3: Cross multiply
    64,072x = 88,418.45 × 37,229.61
  4. Step 4: Simplify right side
    64,072x = 3,291,784,410.30
  5. Step 5: Solve for x
    x = 3,291,784,410.30/64,072
  6. Step 6: Final answer
    x = 51,376.33

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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.