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Finding the Fourth Proportional to 6,408.72, 9,560.84 and 6,245.91

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Solution

The fourth proportional to 6,408.72, 9,560.84 and 6,245.91 is: 9,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.72 : 9,560.84 = 6,245.91 : x
  2. Step 2: Convert to fraction form
    6,408.72/9,560.84 = 6,245.91/x
  3. Step 3: Cross multiply
    6,408.72x = 9,560.84 × 6,245.91
  4. Step 4: Simplify right side
    6,408.72x = 59,716,114.93
  5. Step 5: Solve for x
    x = 59,716,114.93/6,408.72
  6. Step 6: Final answer
    x = 9,317.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.