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Finding the Fourth Proportional to 5,229.59, 7,220.21 and 3,242.25

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Solution

The fourth proportional to 5,229.59, 7,220.21 and 3,242.25 is: 4,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.59 : 7,220.21 = 3,242.25 : x
  2. Step 2: Convert to fraction form
    5,229.59/7,220.21 = 3,242.25/x
  3. Step 3: Cross multiply
    5,229.59x = 7,220.21 × 3,242.25
  4. Step 4: Simplify right side
    5,229.59x = 23,409,709.66
  5. Step 5: Solve for x
    x = 23,409,709.66/5,229.59
  6. Step 6: Final answer
    x = 4,476.40

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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.