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Finding the Fourth Proportional to 27,161.20, 40,693.20 and 22,981.60

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Solution

The fourth proportional to 27,161.20, 40,693.20 and 22,981.60 is: 34,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,161.20 : 40,693.20 = 22,981.60 : x
  2. Step 2: Convert to fraction form
    27,161.20/40,693.20 = 22,981.60/x
  3. Step 3: Cross multiply
    27,161.20x = 40,693.20 × 22,981.60
  4. Step 4: Simplify right side
    27,161.20x = 935,194,845.12
  5. Step 5: Solve for x
    x = 935,194,845.12/27,161.20
  6. Step 6: Final answer
    x = 34,431.28

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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.