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Finding the Fourth Proportional to 63,228.93, 87,179.94 and 51,142.38

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Solution

The fourth proportional to 63,228.93, 87,179.94 and 51,142.38 is: 70,515.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,228.93 : 87,179.94 = 51,142.38 : x
  2. Step 2: Convert to fraction form
    63,228.93/87,179.94 = 51,142.38/x
  3. Step 3: Cross multiply
    63,228.93x = 87,179.94 × 51,142.38
  4. Step 4: Simplify right side
    63,228.93x = 4,458,589,619.86
  5. Step 5: Solve for x
    x = 4,458,589,619.86/63,228.93
  6. Step 6: Final answer
    x = 70,515.03

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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.