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Finding the Fourth Proportional to 15,743.82, 21,726.06 and 9,033.42

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Solution

The fourth proportional to 15,743.82, 21,726.06 and 9,033.42 is: 12,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.82 : 21,726.06 = 9,033.42 : x
  2. Step 2: Convert to fraction form
    15,743.82/21,726.06 = 9,033.42/x
  3. Step 3: Cross multiply
    15,743.82x = 21,726.06 × 9,033.42
  4. Step 4: Simplify right side
    15,743.82x = 196,260,624.93
  5. Step 5: Solve for x
    x = 196,260,624.93/15,743.82
  6. Step 6: Final answer
    x = 12,465.88

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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.