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Finding the Fourth Proportional to 10,874.25, 15,006.47 and 5,906.25

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Solution

The fourth proportional to 10,874.25, 15,006.47 and 5,906.25 is: 8,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.25 : 15,006.47 = 5,906.25 : x
  2. Step 2: Convert to fraction form
    10,874.25/15,006.47 = 5,906.25/x
  3. Step 3: Cross multiply
    10,874.25x = 15,006.47 × 5,906.25
  4. Step 4: Simplify right side
    10,874.25x = 88,631,963.44
  5. Step 5: Solve for x
    x = 88,631,963.44/10,874.25
  6. Step 6: Final answer
    x = 8,150.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.