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Finding the Fourth Proportional to 5,720.22, 7,893.84 and 3,330.72

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Solution

The fourth proportional to 5,720.22, 7,893.84 and 3,330.72 is: 4,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.22 : 7,893.84 = 3,330.72 : x
  2. Step 2: Convert to fraction form
    5,720.22/7,893.84 = 3,330.72/x
  3. Step 3: Cross multiply
    5,720.22x = 7,893.84 × 3,330.72
  4. Step 4: Simplify right side
    5,720.22x = 26,292,170.76
  5. Step 5: Solve for x
    x = 26,292,170.76/5,720.22
  6. Step 6: Final answer
    x = 4,596.36

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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.