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Finding the Fourth Proportional to 15,806.73, 21,813.73 and 8,733.61

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Solution

The fourth proportional to 15,806.73, 21,813.73 and 8,733.61 is: 12,052.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.73 : 21,813.73 = 8,733.61 : x
  2. Step 2: Convert to fraction form
    15,806.73/21,813.73 = 8,733.61/x
  3. Step 3: Cross multiply
    15,806.73x = 21,813.73 × 8,733.61
  4. Step 4: Simplify right side
    15,806.73x = 190,512,610.47
  5. Step 5: Solve for x
    x = 190,512,610.47/15,806.73
  6. Step 6: Final answer
    x = 12,052.63

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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.