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Finding the Fourth Proportional to 5,520.96, 7,609.55 and 3,845.48

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Solution

The fourth proportional to 5,520.96, 7,609.55 and 3,845.48 is: 5,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.96 : 7,609.55 = 3,845.48 : x
  2. Step 2: Convert to fraction form
    5,520.96/7,609.55 = 3,845.48/x
  3. Step 3: Cross multiply
    5,520.96x = 7,609.55 × 3,845.48
  4. Step 4: Simplify right side
    5,520.96x = 29,262,315.06
  5. Step 5: Solve for x
    x = 29,262,315.06/5,520.96
  6. Step 6: Final answer
    x = 5,300.22

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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.