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Finding the Fourth Proportional to 22,662.62, 31,278.89 and 14,480.99

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Solution

The fourth proportional to 22,662.62, 31,278.89 and 14,480.99 is: 19,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.62 : 31,278.89 = 14,480.99 : x
  2. Step 2: Convert to fraction form
    22,662.62/31,278.89 = 14,480.99/x
  3. Step 3: Cross multiply
    22,662.62x = 31,278.89 × 14,480.99
  4. Step 4: Simplify right side
    22,662.62x = 452,949,293.30
  5. Step 5: Solve for x
    x = 452,949,293.30/22,662.62
  6. Step 6: Final answer
    x = 19,986.63

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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.