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Finding the Fourth Proportional to 8,859.35, 12,224.10 and 6,734.31

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Solution

The fourth proportional to 8,859.35, 12,224.10 and 6,734.31 is: 9,291.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.35 : 12,224.10 = 6,734.31 : x
  2. Step 2: Convert to fraction form
    8,859.35/12,224.10 = 6,734.31/x
  3. Step 3: Cross multiply
    8,859.35x = 12,224.10 × 6,734.31
  4. Step 4: Simplify right side
    8,859.35x = 82,320,878.87
  5. Step 5: Solve for x
    x = 82,320,878.87/8,859.35
  6. Step 6: Final answer
    x = 9,291.98

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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.