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Finding the Fourth Proportional to 16,761.66, 25,130.52 and 7,872.02

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Solution

The fourth proportional to 16,761.66, 25,130.52 and 7,872.02 is: 11,802.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.66 : 25,130.52 = 7,872.02 : x
  2. Step 2: Convert to fraction form
    16,761.66/25,130.52 = 7,872.02/x
  3. Step 3: Cross multiply
    16,761.66x = 25,130.52 × 7,872.02
  4. Step 4: Simplify right side
    16,761.66x = 197,827,956.05
  5. Step 5: Solve for x
    x = 197,827,956.05/16,761.66
  6. Step 6: Final answer
    x = 11,802.41

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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.