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Finding the Fourth Proportional to 12,244.80, 16,898.08 and 6,939.52

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Solution

The fourth proportional to 12,244.80, 16,898.08 and 6,939.52 is: 9,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.80 : 16,898.08 = 6,939.52 : x
  2. Step 2: Convert to fraction form
    12,244.80/16,898.08 = 6,939.52/x
  3. Step 3: Cross multiply
    12,244.80x = 16,898.08 × 6,939.52
  4. Step 4: Simplify right side
    12,244.80x = 117,264,564.12
  5. Step 5: Solve for x
    x = 117,264,564.12/12,244.80
  6. Step 6: Final answer
    x = 9,576.68

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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.