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Finding the Fourth Proportional to 14,363.64, 19,821.62 and 8,076.02

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Solution

The fourth proportional to 14,363.64, 19,821.62 and 8,076.02 is: 11,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.64 : 19,821.62 = 8,076.02 : x
  2. Step 2: Convert to fraction form
    14,363.64/19,821.62 = 8,076.02/x
  3. Step 3: Cross multiply
    14,363.64x = 19,821.62 × 8,076.02
  4. Step 4: Simplify right side
    14,363.64x = 160,079,660.06
  5. Step 5: Solve for x
    x = 160,079,660.06/14,363.64
  6. Step 6: Final answer
    x = 11,144.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.