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Finding the Fourth Proportional to 22,276.88, 30,736.68 and 12,340.88

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Solution

The fourth proportional to 22,276.88, 30,736.68 and 12,340.88 is: 17,027.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.88 : 30,736.68 = 12,340.88 : x
  2. Step 2: Convert to fraction form
    22,276.88/30,736.68 = 12,340.88/x
  3. Step 3: Cross multiply
    22,276.88x = 30,736.68 × 12,340.88
  4. Step 4: Simplify right side
    22,276.88x = 379,317,679.48
  5. Step 5: Solve for x
    x = 379,317,679.48/22,276.88
  6. Step 6: Final answer
    x = 17,027.41

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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.