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Finding the Fourth Proportional to 12,713.51, 19,067.22 and 4,393.82

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Solution

The fourth proportional to 12,713.51, 19,067.22 and 4,393.82 is: 6,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.51 : 19,067.22 = 4,393.82 : x
  2. Step 2: Convert to fraction form
    12,713.51/19,067.22 = 4,393.82/x
  3. Step 3: Cross multiply
    12,713.51x = 19,067.22 × 4,393.82
  4. Step 4: Simplify right side
    12,713.51x = 83,777,837.24
  5. Step 5: Solve for x
    x = 83,777,837.24/12,713.51
  6. Step 6: Final answer
    x = 6,589.67

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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.