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Finding the Fourth Proportional to 30,067.88, 45,106.14 and 9,293

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Solution

The fourth proportional to 30,067.88, 45,106.14 and 9,293 is: 13,940.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.88 : 45,106.14 = 9,293 : x
  2. Step 2: Convert to fraction form
    30,067.88/45,106.14 = 9,293/x
  3. Step 3: Cross multiply
    30,067.88x = 45,106.14 × 9,293
  4. Step 4: Simplify right side
    30,067.88x = 419,171,359.02
  5. Step 5: Solve for x
    x = 419,171,359.02/30,067.88
  6. Step 6: Final answer
    x = 13,940.84

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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.