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Finding the Fourth Proportional to 38,675, 58,003.37 and 21,815.24

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Solution

The fourth proportional to 38,675, 58,003.37 and 21,815.24 is: 32,717.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,675 : 58,003.37 = 21,815.24 : x
  2. Step 2: Convert to fraction form
    38,675/58,003.37 = 21,815.24/x
  3. Step 3: Cross multiply
    38,675x = 58,003.37 × 21,815.24
  4. Step 4: Simplify right side
    38,675x = 1,265,357,437.36
  5. Step 5: Solve for x
    x = 1,265,357,437.36/38,675
  6. Step 6: Final answer
    x = 32,717.71

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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.