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Finding the Fourth Proportional to 58,340.92, 80,512.09 and 35,679.50

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Solution

The fourth proportional to 58,340.92, 80,512.09 and 35,679.50 is: 49,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,340.92 : 80,512.09 = 35,679.50 : x
  2. Step 2: Convert to fraction form
    58,340.92/80,512.09 = 35,679.50/x
  3. Step 3: Cross multiply
    58,340.92x = 80,512.09 × 35,679.50
  4. Step 4: Simplify right side
    58,340.92x = 2,872,631,115.16
  5. Step 5: Solve for x
    x = 2,872,631,115.16/58,340.92
  6. Step 6: Final answer
    x = 49,238.71

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1.5x scale

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.