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Finding the Fourth Proportional to 11,788.87, 17,683.05 and 5,545.42

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Solution

The fourth proportional to 11,788.87, 17,683.05 and 5,545.42 is: 8,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.87 : 17,683.05 = 5,545.42 : x
  2. Step 2: Convert to fraction form
    11,788.87/17,683.05 = 5,545.42/x
  3. Step 3: Cross multiply
    11,788.87x = 17,683.05 × 5,545.42
  4. Step 4: Simplify right side
    11,788.87x = 98,059,969.48
  5. Step 5: Solve for x
    x = 98,059,969.48/11,788.87
  6. Step 6: Final answer
    x = 8,318.01

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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.