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Finding the Fourth Proportional to 19,327.50, 28,996.11 and 5,476.50

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Solution

The fourth proportional to 19,327.50, 28,996.11 and 5,476.50 is: 8,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,327.50 : 28,996.11 = 5,476.50 : x
  2. Step 2: Convert to fraction form
    19,327.50/28,996.11 = 5,476.50/x
  3. Step 3: Cross multiply
    19,327.50x = 28,996.11 × 5,476.50
  4. Step 4: Simplify right side
    19,327.50x = 158,797,196.42
  5. Step 5: Solve for x
    x = 158,797,196.42/19,327.50
  6. Step 6: Final answer
    x = 8,216.13

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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.