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Finding the Fourth Proportional to 16,684.26, 25,008.95 and 5,581.81

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Solution

The fourth proportional to 16,684.26, 25,008.95 and 5,581.81 is: 8,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,684.26 : 25,008.95 = 5,581.81 : x
  2. Step 2: Convert to fraction form
    16,684.26/25,008.95 = 5,581.81/x
  3. Step 3: Cross multiply
    16,684.26x = 25,008.95 × 5,581.81
  4. Step 4: Simplify right side
    16,684.26x = 139,595,269.72
  5. Step 5: Solve for x
    x = 139,595,269.72/16,684.26
  6. Step 6: Final answer
    x = 8,366.89

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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.