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Finding the Fourth Proportional to 15,893.91, 23,838.17 and 4,208.31

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Solution

The fourth proportional to 15,893.91, 23,838.17 and 4,208.31 is: 6,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.91 : 23,838.17 = 4,208.31 : x
  2. Step 2: Convert to fraction form
    15,893.91/23,838.17 = 4,208.31/x
  3. Step 3: Cross multiply
    15,893.91x = 23,838.17 × 4,208.31
  4. Step 4: Simplify right side
    15,893.91x = 100,318,388.15
  5. Step 5: Solve for x
    x = 100,318,388.15/15,893.91
  6. Step 6: Final answer
    x = 6,311.75

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1.5x scale

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.