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Finding the Fourth Proportional to 15,639.54, 23,444.73 and 5,244

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Solution

The fourth proportional to 15,639.54, 23,444.73 and 5,244 is: 7,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.54 : 23,444.73 = 5,244 : x
  2. Step 2: Convert to fraction form
    15,639.54/23,444.73 = 5,244/x
  3. Step 3: Cross multiply
    15,639.54x = 23,444.73 × 5,244
  4. Step 4: Simplify right side
    15,639.54x = 122,944,164.12
  5. Step 5: Solve for x
    x = 122,944,164.12/15,639.54
  6. Step 6: Final answer
    x = 7,861.11

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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.