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Finding the Fourth Proportional to 13,585.88, 20,362.48 and 11,797.88

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Solution

The fourth proportional to 13,585.88, 20,362.48 and 11,797.88 is: 17,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.88 : 20,362.48 = 11,797.88 : x
  2. Step 2: Convert to fraction form
    13,585.88/20,362.48 = 11,797.88/x
  3. Step 3: Cross multiply
    13,585.88x = 20,362.48 × 11,797.88
  4. Step 4: Simplify right side
    13,585.88x = 240,234,095.54
  5. Step 5: Solve for x
    x = 240,234,095.54/13,585.88
  6. Step 6: Final answer
    x = 17,682.63

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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.