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Finding the Fourth Proportional to 12,672.72, 19,008.72 and 4,883.22

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Solution

The fourth proportional to 12,672.72, 19,008.72 and 4,883.22 is: 7,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.72 : 19,008.72 = 4,883.22 : x
  2. Step 2: Convert to fraction form
    12,672.72/19,008.72 = 4,883.22/x
  3. Step 3: Cross multiply
    12,672.72x = 19,008.72 × 4,883.22
  4. Step 4: Simplify right side
    12,672.72x = 92,823,761.68
  5. Step 5: Solve for x
    x = 92,823,761.68/12,672.72
  6. Step 6: Final answer
    x = 7,324.69

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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.