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Finding the Fourth Proportional to 3,402.65, 5,101.09 and 1,553.12

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Solution

The fourth proportional to 3,402.65, 5,101.09 and 1,553.12 is: 2,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.65 : 5,101.09 = 1,553.12 : x
  2. Step 2: Convert to fraction form
    3,402.65/5,101.09 = 1,553.12/x
  3. Step 3: Cross multiply
    3,402.65x = 5,101.09 × 1,553.12
  4. Step 4: Simplify right side
    3,402.65x = 7,922,575.51
  5. Step 5: Solve for x
    x = 7,922,575.51/3,402.65
  6. Step 6: Final answer
    x = 2,328.36

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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.