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Finding the Fourth Proportional to 19,593.93, 29,370.79 and 7,742.90

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Solution

The fourth proportional to 19,593.93, 29,370.79 and 7,742.90 is: 11,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,593.93 : 29,370.79 = 7,742.90 : x
  2. Step 2: Convert to fraction form
    19,593.93/29,370.79 = 7,742.90/x
  3. Step 3: Cross multiply
    19,593.93x = 29,370.79 × 7,742.90
  4. Step 4: Simplify right side
    19,593.93x = 227,415,129.44
  5. Step 5: Solve for x
    x = 227,415,129.44/19,593.93
  6. Step 6: Final answer
    x = 11,606.41

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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.