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Finding the Fourth Proportional to 11,937.88, 17,916.54 and 8,484.04

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Solution

The fourth proportional to 11,937.88, 17,916.54 and 8,484.04 is: 12,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.88 : 17,916.54 = 8,484.04 : x
  2. Step 2: Convert to fraction form
    11,937.88/17,916.54 = 8,484.04/x
  3. Step 3: Cross multiply
    11,937.88x = 17,916.54 × 8,484.04
  4. Step 4: Simplify right side
    11,937.88x = 152,004,642.02
  5. Step 5: Solve for x
    x = 152,004,642.02/11,937.88
  6. Step 6: Final answer
    x = 12,732.97

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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.