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Finding the Fourth Proportional to 11,340.52, 15,644.82 and 6,622

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Solution

The fourth proportional to 11,340.52, 15,644.82 and 6,622 is: 9,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.52 : 15,644.82 = 6,622 : x
  2. Step 2: Convert to fraction form
    11,340.52/15,644.82 = 6,622/x
  3. Step 3: Cross multiply
    11,340.52x = 15,644.82 × 6,622
  4. Step 4: Simplify right side
    11,340.52x = 103,599,998.04
  5. Step 5: Solve for x
    x = 103,599,998.04/11,340.52
  6. Step 6: Final answer
    x = 9,135.38

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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.