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Finding the Fourth Proportional to 15,993.28, 22,063.59 and 9,275.02

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Solution

The fourth proportional to 15,993.28, 22,063.59 and 9,275.02 is: 12,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.28 : 22,063.59 = 9,275.02 : x
  2. Step 2: Convert to fraction form
    15,993.28/22,063.59 = 9,275.02/x
  3. Step 3: Cross multiply
    15,993.28x = 22,063.59 × 9,275.02
  4. Step 4: Simplify right side
    15,993.28x = 204,640,128.20
  5. Step 5: Solve for x
    x = 204,640,128.20/15,993.28
  6. Step 6: Final answer
    x = 12,795.38

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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.