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Finding the Fourth Proportional to 59,944.50, 89,918.40 and 18,391.50

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Solution

The fourth proportional to 59,944.50, 89,918.40 and 18,391.50 is: 27,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,944.50 : 89,918.40 = 18,391.50 : x
  2. Step 2: Convert to fraction form
    59,944.50/89,918.40 = 18,391.50/x
  3. Step 3: Cross multiply
    59,944.50x = 89,918.40 × 18,391.50
  4. Step 4: Simplify right side
    59,944.50x = 1,653,734,253.60
  5. Step 5: Solve for x
    x = 1,653,734,253.60/59,944.50
  6. Step 6: Final answer
    x = 27,587.76

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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.