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Finding the Fourth Proportional to 54,359.78, 81,536.00 and 14,913.59

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Solution

The fourth proportional to 54,359.78, 81,536.00 and 14,913.59 is: 22,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,359.78 : 81,536.00 = 14,913.59 : x
  2. Step 2: Convert to fraction form
    54,359.78/81,536.00 = 14,913.59/x
  3. Step 3: Cross multiply
    54,359.78x = 81,536.00 × 14,913.59
  4. Step 4: Simplify right side
    54,359.78x = 1,215,993,991.99
  5. Step 5: Solve for x
    x = 1,215,993,991.99/54,359.78
  6. Step 6: Final answer
    x = 22,369.37

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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.