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Finding the Fourth Proportional to 5,720.22, 7,893.81 and 3,362.40

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Solution

The fourth proportional to 5,720.22, 7,893.81 and 3,362.40 is: 4,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.22 : 7,893.81 = 3,362.40 : x
  2. Step 2: Convert to fraction form
    5,720.22/7,893.81 = 3,362.40/x
  3. Step 3: Cross multiply
    5,720.22x = 7,893.81 × 3,362.40
  4. Step 4: Simplify right side
    5,720.22x = 26,542,146.74
  5. Step 5: Solve for x
    x = 26,542,146.74/5,720.22
  6. Step 6: Final answer
    x = 4,640.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.