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Finding the Fourth Proportional to 63,163.26, 87,164.88 and 34,869

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Solution

The fourth proportional to 63,163.26, 87,164.88 and 34,869 is: 48,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,163.26 : 87,164.88 = 34,869 : x
  2. Step 2: Convert to fraction form
    63,163.26/87,164.88 = 34,869/x
  3. Step 3: Cross multiply
    63,163.26x = 87,164.88 × 34,869
  4. Step 4: Simplify right side
    63,163.26x = 3,039,352,200.72
  5. Step 5: Solve for x
    x = 3,039,352,200.72/63,163.26
  6. Step 6: Final answer
    x = 48,118.99

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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.