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Finding the Fourth Proportional to 11,898.57, 17,835.30 and 3,993.59

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Solution

The fourth proportional to 11,898.57, 17,835.30 and 3,993.59 is: 5,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,898.57 : 17,835.30 = 3,993.59 : x
  2. Step 2: Convert to fraction form
    11,898.57/17,835.30 = 3,993.59/x
  3. Step 3: Cross multiply
    11,898.57x = 17,835.30 × 3,993.59
  4. Step 4: Simplify right side
    11,898.57x = 71,226,920.32
  5. Step 5: Solve for x
    x = 71,226,920.32/11,898.57
  6. Step 6: Final answer
    x = 5,986.17

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1.5x scale

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.