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Finding the Fourth Proportional to 7,664.04, 11,496.06 and 3,278.66

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Solution

The fourth proportional to 7,664.04, 11,496.06 and 3,278.66 is: 4,917.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.04 : 11,496.06 = 3,278.66 : x
  2. Step 2: Convert to fraction form
    7,664.04/11,496.06 = 3,278.66/x
  3. Step 3: Cross multiply
    7,664.04x = 11,496.06 × 3,278.66
  4. Step 4: Simplify right side
    7,664.04x = 37,691,614.60
  5. Step 5: Solve for x
    x = 37,691,614.60/7,664.04
  6. Step 6: Final answer
    x = 4,917.98

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.