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Finding the Fourth Proportional to 11,718.88, 16,172.48 and 6,683.88

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Solution

The fourth proportional to 11,718.88, 16,172.48 and 6,683.88 is: 9,224.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.88 : 16,172.48 = 6,683.88 : x
  2. Step 2: Convert to fraction form
    11,718.88/16,172.48 = 6,683.88/x
  3. Step 3: Cross multiply
    11,718.88x = 16,172.48 × 6,683.88
  4. Step 4: Simplify right side
    11,718.88x = 108,094,915.62
  5. Step 5: Solve for x
    x = 108,094,915.62/11,718.88
  6. Step 6: Final answer
    x = 9,224.00

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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.