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Finding the Fourth Proportional to 15,963.01, 22,028.96 and 8,889.43

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Solution

The fourth proportional to 15,963.01, 22,028.96 and 8,889.43 is: 12,267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.01 : 22,028.96 = 8,889.43 : x
  2. Step 2: Convert to fraction form
    15,963.01/22,028.96 = 8,889.43/x
  3. Step 3: Cross multiply
    15,963.01x = 22,028.96 × 8,889.43
  4. Step 4: Simplify right side
    15,963.01x = 195,824,943.03
  5. Step 5: Solve for x
    x = 195,824,943.03/15,963.01
  6. Step 6: Final answer
    x = 12,267.42

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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.