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Finding the Fourth Proportional to 8,043.75, 12,056.40 and 5,408.10

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Solution

The fourth proportional to 8,043.75, 12,056.40 and 5,408.10 is: 8,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.75 : 12,056.40 = 5,408.10 : x
  2. Step 2: Convert to fraction form
    8,043.75/12,056.40 = 5,408.10/x
  3. Step 3: Cross multiply
    8,043.75x = 12,056.40 × 5,408.10
  4. Step 4: Simplify right side
    8,043.75x = 65,202,216.84
  5. Step 5: Solve for x
    x = 65,202,216.84/8,043.75
  6. Step 6: Final answer
    x = 8,105.95

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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.