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Finding the Fourth Proportional to 8,756.88, 12,092.36 and 8,144.52

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Solution

The fourth proportional to 8,756.88, 12,092.36 and 8,144.52 is: 11,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.88 : 12,092.36 = 8,144.52 : x
  2. Step 2: Convert to fraction form
    8,756.88/12,092.36 = 8,144.52/x
  3. Step 3: Cross multiply
    8,756.88x = 12,092.36 × 8,144.52
  4. Step 4: Simplify right side
    8,756.88x = 98,486,467.87
  5. Step 5: Solve for x
    x = 98,486,467.87/8,756.88
  6. Step 6: Final answer
    x = 11,246.75

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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.