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Finding the Fourth Proportional to 3,572.92, 5,355.26 and 1,926.01

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Solution

The fourth proportional to 3,572.92, 5,355.26 and 1,926.01 is: 2,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.92 : 5,355.26 = 1,926.01 : x
  2. Step 2: Convert to fraction form
    3,572.92/5,355.26 = 1,926.01/x
  3. Step 3: Cross multiply
    3,572.92x = 5,355.26 × 1,926.01
  4. Step 4: Simplify right side
    3,572.92x = 10,314,284.31
  5. Step 5: Solve for x
    x = 10,314,284.31/3,572.92
  6. Step 6: Final answer
    x = 2,886.79

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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.