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Finding the Fourth Proportional to 6,767.56, 9,348.69 and 6,412.88

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Solution

The fourth proportional to 6,767.56, 9,348.69 and 6,412.88 is: 8,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,767.56 : 9,348.69 = 6,412.88 : x
  2. Step 2: Convert to fraction form
    6,767.56/9,348.69 = 6,412.88/x
  3. Step 3: Cross multiply
    6,767.56x = 9,348.69 × 6,412.88
  4. Step 4: Simplify right side
    6,767.56x = 59,951,948.32
  5. Step 5: Solve for x
    x = 59,951,948.32/6,767.56
  6. Step 6: Final answer
    x = 8,858.73

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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.