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Finding the Fourth Proportional to 58,672.07, 87,969.22 and 21,227.27

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Solution

The fourth proportional to 58,672.07, 87,969.22 and 21,227.27 is: 31,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,672.07 : 87,969.22 = 21,227.27 : x
  2. Step 2: Convert to fraction form
    58,672.07/87,969.22 = 21,227.27/x
  3. Step 3: Cross multiply
    58,672.07x = 87,969.22 × 21,227.27
  4. Step 4: Simplify right side
    58,672.07x = 1,867,346,523.02
  5. Step 5: Solve for x
    x = 1,867,346,523.02/58,672.07
  6. Step 6: Final answer
    x = 31,826.84

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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.