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Finding the Fourth Proportional to 6,249.56, 8,624.32 and 3,455

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Solution

The fourth proportional to 6,249.56, 8,624.32 and 3,455 is: 4,767.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,249.56 : 8,624.32 = 3,455 : x
  2. Step 2: Convert to fraction form
    6,249.56/8,624.32 = 3,455/x
  3. Step 3: Cross multiply
    6,249.56x = 8,624.32 × 3,455
  4. Step 4: Simplify right side
    6,249.56x = 29,797,025.60
  5. Step 5: Solve for x
    x = 29,797,025.60/6,249.56
  6. Step 6: Final answer
    x = 4,767.86

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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.