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Finding the Fourth Proportional to 47,387.62, 65,405.64 and 33,974.02

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Solution

The fourth proportional to 47,387.62, 65,405.64 and 33,974.02 is: 46,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,387.62 : 65,405.64 = 33,974.02 : x
  2. Step 2: Convert to fraction form
    47,387.62/65,405.64 = 33,974.02/x
  3. Step 3: Cross multiply
    47,387.62x = 65,405.64 × 33,974.02
  4. Step 4: Simplify right side
    47,387.62x = 2,222,092,521.47
  5. Step 5: Solve for x
    x = 2,222,092,521.47/47,387.62
  6. Step 6: Final answer
    x = 46,891.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.