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Finding the Fourth Proportional to 14,616.60, 21,911.73 and 5,254.41

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Solution

The fourth proportional to 14,616.60, 21,911.73 and 5,254.41 is: 7,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.60 : 21,911.73 = 5,254.41 : x
  2. Step 2: Convert to fraction form
    14,616.60/21,911.73 = 5,254.41/x
  3. Step 3: Cross multiply
    14,616.60x = 21,911.73 × 5,254.41
  4. Step 4: Simplify right side
    14,616.60x = 115,133,213.23
  5. Step 5: Solve for x
    x = 115,133,213.23/14,616.60
  6. Step 6: Final answer
    x = 7,876.88

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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.