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Finding the Fourth Proportional to 22,921.87, 34,383.29 and 7,339.45

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Solution

The fourth proportional to 22,921.87, 34,383.29 and 7,339.45 is: 11,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.87 : 34,383.29 = 7,339.45 : x
  2. Step 2: Convert to fraction form
    22,921.87/34,383.29 = 7,339.45/x
  3. Step 3: Cross multiply
    22,921.87x = 34,383.29 × 7,339.45
  4. Step 4: Simplify right side
    22,921.87x = 252,354,401.09
  5. Step 5: Solve for x
    x = 252,354,401.09/22,921.87
  6. Step 6: Final answer
    x = 11,009.33

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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.