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Finding the Fourth Proportional to 9,855.28, 14,785.08 and 3,699.28

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Solution

The fourth proportional to 9,855.28, 14,785.08 and 3,699.28 is: 5,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.28 : 14,785.08 = 3,699.28 : x
  2. Step 2: Convert to fraction form
    9,855.28/14,785.08 = 3,699.28/x
  3. Step 3: Cross multiply
    9,855.28x = 14,785.08 × 3,699.28
  4. Step 4: Simplify right side
    9,855.28x = 54,694,176.16
  5. Step 5: Solve for x
    x = 54,694,176.16/9,855.28
  6. Step 6: Final answer
    x = 5,549.73

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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.