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Finding the Fourth Proportional to 60,269.61, 90,394.09 and 15,896.80

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Solution

The fourth proportional to 60,269.61, 90,394.09 and 15,896.80 is: 23,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,269.61 : 90,394.09 = 15,896.80 : x
  2. Step 2: Convert to fraction form
    60,269.61/90,394.09 = 15,896.80/x
  3. Step 3: Cross multiply
    60,269.61x = 90,394.09 × 15,896.80
  4. Step 4: Simplify right side
    60,269.61x = 1,436,976,504.18
  5. Step 5: Solve for x
    x = 1,436,976,504.18/60,269.61
  6. Step 6: Final answer
    x = 23,842.47

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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.