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Finding the Fourth Proportional to 63,978.56, 95,883.36 and 30,708.80

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Solution

The fourth proportional to 63,978.56, 95,883.36 and 30,708.80 is: 46,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,978.56 : 95,883.36 = 30,708.80 : x
  2. Step 2: Convert to fraction form
    63,978.56/95,883.36 = 30,708.80/x
  3. Step 3: Cross multiply
    63,978.56x = 95,883.36 × 30,708.80
  4. Step 4: Simplify right side
    63,978.56x = 2,944,462,925.57
  5. Step 5: Solve for x
    x = 2,944,462,925.57/63,978.56
  6. Step 6: Final answer
    x = 46,022.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.