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Finding the Fourth Proportional to 30,712.66, 46,067.11 and 18,069.41

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Solution

The fourth proportional to 30,712.66, 46,067.11 and 18,069.41 is: 27,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.66 : 46,067.11 = 18,069.41 : x
  2. Step 2: Convert to fraction form
    30,712.66/46,067.11 = 18,069.41/x
  3. Step 3: Cross multiply
    30,712.66x = 46,067.11 × 18,069.41
  4. Step 4: Simplify right side
    30,712.66x = 832,405,407.76
  5. Step 5: Solve for x
    x = 832,405,407.76/30,712.66
  6. Step 6: Final answer
    x = 27,103.01

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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.