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Finding the Fourth Proportional to 11,934.13, 17,901.20 and 4,143.01

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Solution

The fourth proportional to 11,934.13, 17,901.20 and 4,143.01 is: 6,214.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,934.13 : 17,901.20 = 4,143.01 : x
  2. Step 2: Convert to fraction form
    11,934.13/17,901.20 = 4,143.01/x
  3. Step 3: Cross multiply
    11,934.13x = 17,901.20 × 4,143.01
  4. Step 4: Simplify right side
    11,934.13x = 74,164,850.61
  5. Step 5: Solve for x
    x = 74,164,850.61/11,934.13
  6. Step 6: Final answer
    x = 6,214.52

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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.