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Finding the Fourth Proportional to 17,683.01, 26,508.03 and 12,138.96

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Solution

The fourth proportional to 17,683.01, 26,508.03 and 12,138.96 is: 18,197.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,683.01 : 26,508.03 = 12,138.96 : x
  2. Step 2: Convert to fraction form
    17,683.01/26,508.03 = 12,138.96/x
  3. Step 3: Cross multiply
    17,683.01x = 26,508.03 × 12,138.96
  4. Step 4: Simplify right side
    17,683.01x = 321,780,038.01
  5. Step 5: Solve for x
    x = 321,780,038.01/17,683.01
  6. Step 6: Final answer
    x = 18,197.13

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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.