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Finding the Fourth Proportional to 3,572.64, 5,362.42 and 1,725.06

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Solution

The fourth proportional to 3,572.64, 5,362.42 and 1,725.06 is: 2,589.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.64 : 5,362.42 = 1,725.06 : x
  2. Step 2: Convert to fraction form
    3,572.64/5,362.42 = 1,725.06/x
  3. Step 3: Cross multiply
    3,572.64x = 5,362.42 × 1,725.06
  4. Step 4: Simplify right side
    3,572.64x = 9,250,496.25
  5. Step 5: Solve for x
    x = 9,250,496.25/3,572.64
  6. Step 6: Final answer
    x = 2,589.26

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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.