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Finding the Fourth Proportional to 59,945.50, 89,919.90 and 18,392.50

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Solution

The fourth proportional to 59,945.50, 89,919.90 and 18,392.50 is: 27,589.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,945.50 : 89,919.90 = 18,392.50 : x
  2. Step 2: Convert to fraction form
    59,945.50/89,919.90 = 18,392.50/x
  3. Step 3: Cross multiply
    59,945.50x = 89,919.90 × 18,392.50
  4. Step 4: Simplify right side
    59,945.50x = 1,653,851,760.75
  5. Step 5: Solve for x
    x = 1,653,851,760.75/59,945.50
  6. Step 6: Final answer
    x = 27,589.26

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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.