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Finding the Fourth Proportional to 54,600.56, 81,913.80 and 28,317.68

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Solution

The fourth proportional to 54,600.56, 81,913.80 and 28,317.68 is: 42,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,600.56 : 81,913.80 = 28,317.68 : x
  2. Step 2: Convert to fraction form
    54,600.56/81,913.80 = 28,317.68/x
  3. Step 3: Cross multiply
    54,600.56x = 81,913.80 × 28,317.68
  4. Step 4: Simplify right side
    54,600.56x = 2,319,608,775.98
  5. Step 5: Solve for x
    x = 2,319,608,775.98/54,600.56
  6. Step 6: Final answer
    x = 42,483.24

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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.