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Finding the Fourth Proportional to 11,673.13, 17,509.85 and 3,881.95

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Solution

The fourth proportional to 11,673.13, 17,509.85 and 3,881.95 is: 5,822.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,673.13 : 17,509.85 = 3,881.95 : x
  2. Step 2: Convert to fraction form
    11,673.13/17,509.85 = 3,881.95/x
  3. Step 3: Cross multiply
    11,673.13x = 17,509.85 × 3,881.95
  4. Step 4: Simplify right side
    11,673.13x = 67,972,362.21
  5. Step 5: Solve for x
    x = 67,972,362.21/11,673.13
  6. Step 6: Final answer
    x = 5,822.98

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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.