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Finding the Fourth Proportional to 14,638.66, 21,961.03 and 5,874.26

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Solution

The fourth proportional to 14,638.66, 21,961.03 and 5,874.26 is: 8,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.66 : 21,961.03 = 5,874.26 : x
  2. Step 2: Convert to fraction form
    14,638.66/21,961.03 = 5,874.26/x
  3. Step 3: Cross multiply
    14,638.66x = 21,961.03 × 5,874.26
  4. Step 4: Simplify right side
    14,638.66x = 129,004,690.28
  5. Step 5: Solve for x
    x = 129,004,690.28/14,638.66
  6. Step 6: Final answer
    x = 8,812.60

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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.