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Finding the Fourth Proportional to 11,834.18, 17,720.90 and 11,483.80

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Solution

The fourth proportional to 11,834.18, 17,720.90 and 11,483.80 is: 17,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,834.18 : 17,720.90 = 11,483.80 : x
  2. Step 2: Convert to fraction form
    11,834.18/17,720.90 = 11,483.80/x
  3. Step 3: Cross multiply
    11,834.18x = 17,720.90 × 11,483.80
  4. Step 4: Simplify right side
    11,834.18x = 203,503,271.42
  5. Step 5: Solve for x
    x = 203,503,271.42/11,834.18
  6. Step 6: Final answer
    x = 17,196.23

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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.