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Finding the Fourth Proportional to 15,843.92, 21,867.06 and 9,037.95

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Solution

The fourth proportional to 15,843.92, 21,867.06 and 9,037.95 is: 12,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,843.92 : 21,867.06 = 9,037.95 : x
  2. Step 2: Convert to fraction form
    15,843.92/21,867.06 = 9,037.95/x
  3. Step 3: Cross multiply
    15,843.92x = 21,867.06 × 9,037.95
  4. Step 4: Simplify right side
    15,843.92x = 197,633,394.93
  5. Step 5: Solve for x
    x = 197,633,394.93/15,843.92
  6. Step 6: Final answer
    x = 12,473.77

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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.