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Finding the Fourth Proportional to 19,381.54, 29,073.01 and 5,342.68

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Solution

The fourth proportional to 19,381.54, 29,073.01 and 5,342.68 is: 8,014.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.54 : 29,073.01 = 5,342.68 : x
  2. Step 2: Convert to fraction form
    19,381.54/29,073.01 = 5,342.68/x
  3. Step 3: Cross multiply
    19,381.54x = 29,073.01 × 5,342.68
  4. Step 4: Simplify right side
    19,381.54x = 155,327,789.07
  5. Step 5: Solve for x
    x = 155,327,789.07/19,381.54
  6. Step 6: Final answer
    x = 8,014.22

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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.