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Finding the Fourth Proportional to 22,921.26, 34,383.06 and 7,137.06

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Solution

The fourth proportional to 22,921.26, 34,383.06 and 7,137.06 is: 10,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.26 : 34,383.06 = 7,137.06 : x
  2. Step 2: Convert to fraction form
    22,921.26/34,383.06 = 7,137.06/x
  3. Step 3: Cross multiply
    22,921.26x = 34,383.06 × 7,137.06
  4. Step 4: Simplify right side
    22,921.26x = 245,393,962.20
  5. Step 5: Solve for x
    x = 245,393,962.20/22,921.26
  6. Step 6: Final answer
    x = 10,705.95

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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.