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Finding the Fourth Proportional to 54,322.41, 81,483.68 and 14,879.87

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Solution

The fourth proportional to 54,322.41, 81,483.68 and 14,879.87 is: 22,319.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,322.41 : 81,483.68 = 14,879.87 : x
  2. Step 2: Convert to fraction form
    54,322.41/81,483.68 = 14,879.87/x
  3. Step 3: Cross multiply
    54,322.41x = 81,483.68 × 14,879.87
  4. Step 4: Simplify right side
    54,322.41x = 1,212,466,195.30
  5. Step 5: Solve for x
    x = 1,212,466,195.30/54,322.41
  6. Step 6: Final answer
    x = 22,319.82

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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.