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Finding the Fourth Proportional to 6,247.78, 8,621.76 and 3,593.32

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Solution

The fourth proportional to 6,247.78, 8,621.76 and 3,593.32 is: 4,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.78 : 8,621.76 = 3,593.32 : x
  2. Step 2: Convert to fraction form
    6,247.78/8,621.76 = 3,593.32/x
  3. Step 3: Cross multiply
    6,247.78x = 8,621.76 × 3,593.32
  4. Step 4: Simplify right side
    6,247.78x = 30,980,742.64
  5. Step 5: Solve for x
    x = 30,980,742.64/6,247.78
  6. Step 6: Final answer
    x = 4,958.68

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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.