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Finding the Fourth Proportional to 6,216.72, 8,578.80 and 3,563.97

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Solution

The fourth proportional to 6,216.72, 8,578.80 and 3,563.97 is: 4,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.72 : 8,578.80 = 3,563.97 : x
  2. Step 2: Convert to fraction form
    6,216.72/8,578.80 = 3,563.97/x
  3. Step 3: Cross multiply
    6,216.72x = 8,578.80 × 3,563.97
  4. Step 4: Simplify right side
    6,216.72x = 30,574,585.84
  5. Step 5: Solve for x
    x = 30,574,585.84/6,216.72
  6. Step 6: Final answer
    x = 4,918.12

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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.