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Finding the Fourth Proportional to 19,927.87, 29,866.29 and 9,374.54

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Solution

The fourth proportional to 19,927.87, 29,866.29 and 9,374.54 is: 14,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.87 : 29,866.29 = 9,374.54 : x
  2. Step 2: Convert to fraction form
    19,927.87/29,866.29 = 9,374.54/x
  3. Step 3: Cross multiply
    19,927.87x = 29,866.29 × 9,374.54
  4. Step 4: Simplify right side
    19,927.87x = 279,982,624.87
  5. Step 5: Solve for x
    x = 279,982,624.87/19,927.87
  6. Step 6: Final answer
    x = 14,049.80

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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.