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Finding the Fourth Proportional to 22,940.08, 34,401.86 and 7,943.12

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Solution

The fourth proportional to 22,940.08, 34,401.86 and 7,943.12 is: 11,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.08 : 34,401.86 = 7,943.12 : x
  2. Step 2: Convert to fraction form
    22,940.08/34,401.86 = 7,943.12/x
  3. Step 3: Cross multiply
    22,940.08x = 34,401.86 × 7,943.12
  4. Step 4: Simplify right side
    22,940.08x = 273,258,102.20
  5. Step 5: Solve for x
    x = 273,258,102.20/22,940.08
  6. Step 6: Final answer
    x = 11,911.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.