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Finding the Fourth Proportional to 45,978.88, 63,449.85 and 25,559.59

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Solution

The fourth proportional to 45,978.88, 63,449.85 and 25,559.59 is: 35,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,978.88 : 63,449.85 = 25,559.59 : x
  2. Step 2: Convert to fraction form
    45,978.88/63,449.85 = 25,559.59/x
  3. Step 3: Cross multiply
    45,978.88x = 63,449.85 × 25,559.59
  4. Step 4: Simplify right side
    45,978.88x = 1,621,752,151.56
  5. Step 5: Solve for x
    x = 1,621,752,151.56/45,978.88
  6. Step 6: Final answer
    x = 35,271.68

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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.