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Finding the Fourth Proportional to 3,572.03, 5,358.90 and 1,623.80

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Solution

The fourth proportional to 3,572.03, 5,358.90 and 1,623.80 is: 2,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.03 : 5,358.90 = 1,623.80 : x
  2. Step 2: Convert to fraction form
    3,572.03/5,358.90 = 1,623.80/x
  3. Step 3: Cross multiply
    3,572.03x = 5,358.90 × 1,623.80
  4. Step 4: Simplify right side
    3,572.03x = 8,701,781.82
  5. Step 5: Solve for x
    x = 8,701,781.82/3,572.03
  6. Step 6: Final answer
    x = 2,436.09

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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.