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Finding the Fourth Proportional to 63,004.62, 86,979.75 and 48,633.54

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Solution

The fourth proportional to 63,004.62, 86,979.75 and 48,633.54 is: 67,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,004.62 : 86,979.75 = 48,633.54 : x
  2. Step 2: Convert to fraction form
    63,004.62/86,979.75 = 48,633.54/x
  3. Step 3: Cross multiply
    63,004.62x = 86,979.75 × 48,633.54
  4. Step 4: Simplify right side
    63,004.62x = 4,230,133,150.82
  5. Step 5: Solve for x
    x = 4,230,133,150.82/63,004.62
  6. Step 6: Final answer
    x = 67,140.05

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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.