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Finding the Fourth Proportional to 15,388.62, 23,083.44 and 4,858.74

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Solution

The fourth proportional to 15,388.62, 23,083.44 and 4,858.74 is: 7,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.62 : 23,083.44 = 4,858.74 : x
  2. Step 2: Convert to fraction form
    15,388.62/23,083.44 = 4,858.74/x
  3. Step 3: Cross multiply
    15,388.62x = 23,083.44 × 4,858.74
  4. Step 4: Simplify right side
    15,388.62x = 112,156,433.27
  5. Step 5: Solve for x
    x = 112,156,433.27/15,388.62
  6. Step 6: Final answer
    x = 7,288.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.