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Finding the Fourth Proportional to 6,684.56, 9,219.72 and 4,324.88

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Solution

The fourth proportional to 6,684.56, 9,219.72 and 4,324.88 is: 5,965.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,684.56 : 9,219.72 = 4,324.88 : x
  2. Step 2: Convert to fraction form
    6,684.56/9,219.72 = 4,324.88/x
  3. Step 3: Cross multiply
    6,684.56x = 9,219.72 × 4,324.88
  4. Step 4: Simplify right side
    6,684.56x = 39,874,182.63
  5. Step 5: Solve for x
    x = 39,874,182.63/6,684.56
  6. Step 6: Final answer
    x = 5,965.12

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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.