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Finding the Fourth Proportional to 5,652.72, 7,796.60 and 3,884.40

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Solution

The fourth proportional to 5,652.72, 7,796.60 and 3,884.40 is: 5,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,652.72 : 7,796.60 = 3,884.40 : x
  2. Step 2: Convert to fraction form
    5,652.72/7,796.60 = 3,884.40/x
  3. Step 3: Cross multiply
    5,652.72x = 7,796.60 × 3,884.40
  4. Step 4: Simplify right side
    5,652.72x = 30,285,113.04
  5. Step 5: Solve for x
    x = 30,285,113.04/5,652.72
  6. Step 6: Final answer
    x = 5,357.62

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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.