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Finding the Fourth Proportional to 19,644, 29,471.40 and 5,793

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Solution

The fourth proportional to 19,644, 29,471.40 and 5,793 is: 8,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644 : 29,471.40 = 5,793 : x
  2. Step 2: Convert to fraction form
    19,644/29,471.40 = 5,793/x
  3. Step 3: Cross multiply
    19,644x = 29,471.40 × 5,793
  4. Step 4: Simplify right side
    19,644x = 170,727,820.20
  5. Step 5: Solve for x
    x = 170,727,820.20/19,644
  6. Step 6: Final answer
    x = 8,691.09

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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.