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Finding the Fourth Proportional to 39,339.52, 58,978.44 and 26,828.44

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Solution

The fourth proportional to 39,339.52, 58,978.44 and 26,828.44 is: 40,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,339.52 : 58,978.44 = 26,828.44 : x
  2. Step 2: Convert to fraction form
    39,339.52/58,978.44 = 26,828.44/x
  3. Step 3: Cross multiply
    39,339.52x = 58,978.44 × 26,828.44
  4. Step 4: Simplify right side
    39,339.52x = 1,582,299,538.83
  5. Step 5: Solve for x
    x = 1,582,299,538.83/39,339.52
  6. Step 6: Final answer
    x = 40,221.63

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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.