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Finding the Fourth Proportional to 7,220.41, 9,964.22 and 4,236.29

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Solution

The fourth proportional to 7,220.41, 9,964.22 and 4,236.29 is: 5,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.41 : 9,964.22 = 4,236.29 : x
  2. Step 2: Convert to fraction form
    7,220.41/9,964.22 = 4,236.29/x
  3. Step 3: Cross multiply
    7,220.41x = 9,964.22 × 4,236.29
  4. Step 4: Simplify right side
    7,220.41x = 42,211,325.54
  5. Step 5: Solve for x
    x = 42,211,325.54/7,220.41
  6. Step 6: Final answer
    x = 5,846.11

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Double scale
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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.