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Finding the Fourth Proportional to 64,625.81, 89,179.04 and 36,335.75

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Solution

The fourth proportional to 64,625.81, 89,179.04 and 36,335.75 is: 50,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,625.81 : 89,179.04 = 36,335.75 : x
  2. Step 2: Convert to fraction form
    64,625.81/89,179.04 = 36,335.75/x
  3. Step 3: Cross multiply
    64,625.81x = 89,179.04 × 36,335.75
  4. Step 4: Simplify right side
    64,625.81x = 3,240,386,947.62
  5. Step 5: Solve for x
    x = 3,240,386,947.62/64,625.81
  6. Step 6: Final answer
    x = 50,140.76

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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.