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Finding the Fourth Proportional to 64,933.46, 89,603.25 and 36,641.78

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Solution

The fourth proportional to 64,933.46, 89,603.25 and 36,641.78 is: 50,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,933.46 : 89,603.25 = 36,641.78 : x
  2. Step 2: Convert to fraction form
    64,933.46/89,603.25 = 36,641.78/x
  3. Step 3: Cross multiply
    64,933.46x = 89,603.25 × 36,641.78
  4. Step 4: Simplify right side
    64,933.46x = 3,283,222,573.79
  5. Step 5: Solve for x
    x = 3,283,222,573.79/64,933.46
  6. Step 6: Final answer
    x = 50,562.88

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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.