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Finding the Fourth Proportional to 66,963.78, 100,460.25 and 29,511.54

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Solution

The fourth proportional to 66,963.78, 100,460.25 and 29,511.54 is: 44,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,963.78 : 100,460.25 = 29,511.54 : x
  2. Step 2: Convert to fraction form
    66,963.78/100,460.25 = 29,511.54/x
  3. Step 3: Cross multiply
    66,963.78x = 100,460.25 × 29,511.54
  4. Step 4: Simplify right side
    66,963.78x = 2,964,736,686.29
  5. Step 5: Solve for x
    x = 2,964,736,686.29/66,963.78
  6. Step 6: Final answer
    x = 44,273.74

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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.