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Finding the Fourth Proportional to 9,908.80, 14,865.16 and 3,668.88

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Solution

The fourth proportional to 9,908.80, 14,865.16 and 3,668.88 is: 5,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.80 : 14,865.16 = 3,668.88 : x
  2. Step 2: Convert to fraction form
    9,908.80/14,865.16 = 3,668.88/x
  3. Step 3: Cross multiply
    9,908.80x = 14,865.16 × 3,668.88
  4. Step 4: Simplify right side
    9,908.80x = 54,538,488.22
  5. Step 5: Solve for x
    x = 54,538,488.22/9,908.80
  6. Step 6: Final answer
    x = 5,504.05

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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.