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Finding the Fourth Proportional to 38,479.06, 57,721.02 and 16,289.52

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Solution

The fourth proportional to 38,479.06, 57,721.02 and 16,289.52 is: 24,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479.06 : 57,721.02 = 16,289.52 : x
  2. Step 2: Convert to fraction form
    38,479.06/57,721.02 = 16,289.52/x
  3. Step 3: Cross multiply
    38,479.06x = 57,721.02 × 16,289.52
  4. Step 4: Simplify right side
    38,479.06x = 940,247,709.71
  5. Step 5: Solve for x
    x = 940,247,709.71/38,479.06
  6. Step 6: Final answer
    x = 24,435.31

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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.