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Finding the Fourth Proportional to 63,571.14, 87,729.99 and 35,278.65

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Solution

The fourth proportional to 63,571.14, 87,729.99 and 35,278.65 is: 48,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,571.14 : 87,729.99 = 35,278.65 : x
  2. Step 2: Convert to fraction form
    63,571.14/87,729.99 = 35,278.65/x
  3. Step 3: Cross multiply
    63,571.14x = 87,729.99 × 35,278.65
  4. Step 4: Simplify right side
    63,571.14x = 3,094,995,611.71
  5. Step 5: Solve for x
    x = 3,094,995,611.71/63,571.14
  6. Step 6: Final answer
    x = 48,685.55

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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.