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Finding the Fourth Proportional to 54,030.52, 74,472.87 and 36,118.99

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Solution

The fourth proportional to 54,030.52, 74,472.87 and 36,118.99 is: 49,784.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,030.52 : 74,472.87 = 36,118.99 : x
  2. Step 2: Convert to fraction form
    54,030.52/74,472.87 = 36,118.99/x
  3. Step 3: Cross multiply
    54,030.52x = 74,472.87 × 36,118.99
  4. Step 4: Simplify right side
    54,030.52x = 2,689,884,660.62
  5. Step 5: Solve for x
    x = 2,689,884,660.62/54,030.52
  6. Step 6: Final answer
    x = 49,784.54

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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.