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Finding the Fourth Proportional to 22,906.77, 34,357.99 and 7,320.21

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Solution

The fourth proportional to 22,906.77, 34,357.99 and 7,320.21 is: 10,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,906.77 : 34,357.99 = 7,320.21 : x
  2. Step 2: Convert to fraction form
    22,906.77/34,357.99 = 7,320.21/x
  3. Step 3: Cross multiply
    22,906.77x = 34,357.99 × 7,320.21
  4. Step 4: Simplify right side
    22,906.77x = 251,507,701.98
  5. Step 5: Solve for x
    x = 251,507,701.98/22,906.77
  6. Step 6: Final answer
    x = 10,979.62

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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.