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Finding the Fourth Proportional to 49,951.52, 74,918.22 and 21,866.12

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Solution

The fourth proportional to 49,951.52, 74,918.22 and 21,866.12 is: 32,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,951.52 : 74,918.22 = 21,866.12 : x
  2. Step 2: Convert to fraction form
    49,951.52/74,918.22 = 21,866.12/x
  3. Step 3: Cross multiply
    49,951.52x = 74,918.22 × 21,866.12
  4. Step 4: Simplify right side
    49,951.52x = 1,638,170,788.71
  5. Step 5: Solve for x
    x = 1,638,170,788.71/49,951.52
  6. Step 6: Final answer
    x = 32,795.21

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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.