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Finding the Fourth Proportional to 11,913.87, 17,870.93 and 3,593.95

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Solution

The fourth proportional to 11,913.87, 17,870.93 and 3,593.95 is: 5,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.87 : 17,870.93 = 3,593.95 : x
  2. Step 2: Convert to fraction form
    11,913.87/17,870.93 = 3,593.95/x
  3. Step 3: Cross multiply
    11,913.87x = 17,870.93 × 3,593.95
  4. Step 4: Simplify right side
    11,913.87x = 64,227,304.72
  5. Step 5: Solve for x
    x = 64,227,304.72/11,913.87
  6. Step 6: Final answer
    x = 5,390.97

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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.