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Finding the Fourth Proportional to 8,859.97, 12,226.77 and 5,083.21

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Solution

The fourth proportional to 8,859.97, 12,226.77 and 5,083.21 is: 7,014.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.97 : 12,226.77 = 5,083.21 : x
  2. Step 2: Convert to fraction form
    8,859.97/12,226.77 = 5,083.21/x
  3. Step 3: Cross multiply
    8,859.97x = 12,226.77 × 5,083.21
  4. Step 4: Simplify right side
    8,859.97x = 62,151,239.53
  5. Step 5: Solve for x
    x = 62,151,239.53/8,859.97
  6. Step 6: Final answer
    x = 7,014.84

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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.