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Finding the Fourth Proportional to 5,321.16, 7,972.02 and 3,673.08

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Solution

The fourth proportional to 5,321.16, 7,972.02 and 3,673.08 is: 5,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.16 : 7,972.02 = 3,673.08 : x
  2. Step 2: Convert to fraction form
    5,321.16/7,972.02 = 3,673.08/x
  3. Step 3: Cross multiply
    5,321.16x = 7,972.02 × 3,673.08
  4. Step 4: Simplify right side
    5,321.16x = 29,281,867.22
  5. Step 5: Solve for x
    x = 29,281,867.22/5,321.16
  6. Step 6: Final answer
    x = 5,502.91

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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.