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Finding the Fourth Proportional to 9,220.41, 12,723.03 and 5,240.40

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Solution

The fourth proportional to 9,220.41, 12,723.03 and 5,240.40 is: 7,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.41 : 12,723.03 = 5,240.40 : x
  2. Step 2: Convert to fraction form
    9,220.41/12,723.03 = 5,240.40/x
  3. Step 3: Cross multiply
    9,220.41x = 12,723.03 × 5,240.40
  4. Step 4: Simplify right side
    9,220.41x = 66,673,766.41
  5. Step 5: Solve for x
    x = 66,673,766.41/9,220.41
  6. Step 6: Final answer
    x = 7,231.11

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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.