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Finding the Fourth Proportional to 9,223.92, 12,731.22 and 5,247.18

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Solution

The fourth proportional to 9,223.92, 12,731.22 and 5,247.18 is: 7,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,223.92 : 12,731.22 = 5,247.18 : x
  2. Step 2: Convert to fraction form
    9,223.92/12,731.22 = 5,247.18/x
  3. Step 3: Cross multiply
    9,223.92x = 12,731.22 × 5,247.18
  4. Step 4: Simplify right side
    9,223.92x = 66,803,002.96
  5. Step 5: Solve for x
    x = 66,803,002.96/9,223.92
  6. Step 6: Final answer
    x = 7,242.37

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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.