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Finding the Fourth Proportional to 54,810.85, 82,221.50 and 15,367.85

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Solution

The fourth proportional to 54,810.85, 82,221.50 and 15,367.85 is: 23,053.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,810.85 : 82,221.50 = 15,367.85 : x
  2. Step 2: Convert to fraction form
    54,810.85/82,221.50 = 15,367.85/x
  3. Step 3: Cross multiply
    54,810.85x = 82,221.50 × 15,367.85
  4. Step 4: Simplify right side
    54,810.85x = 1,263,567,678.78
  5. Step 5: Solve for x
    x = 1,263,567,678.78/54,810.85
  6. Step 6: Final answer
    x = 23,053.24

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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.