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Finding the Fourth Proportional to 8,083.84, 12,130.44 and 3,403.52

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Solution

The fourth proportional to 8,083.84, 12,130.44 and 3,403.52 is: 5,107.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.84 : 12,130.44 = 3,403.52 : x
  2. Step 2: Convert to fraction form
    8,083.84/12,130.44 = 3,403.52/x
  3. Step 3: Cross multiply
    8,083.84x = 12,130.44 × 3,403.52
  4. Step 4: Simplify right side
    8,083.84x = 41,286,195.15
  5. Step 5: Solve for x
    x = 41,286,195.15/8,083.84
  6. Step 6: Final answer
    x = 5,107.25

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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.