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Finding the Fourth Proportional to 15,806.97, 21,813.03 and 8,733.24

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Solution

The fourth proportional to 15,806.97, 21,813.03 and 8,733.24 is: 12,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.97 : 21,813.03 = 8,733.24 : x
  2. Step 2: Convert to fraction form
    15,806.97/21,813.03 = 8,733.24/x
  3. Step 3: Cross multiply
    15,806.97x = 21,813.03 × 8,733.24
  4. Step 4: Simplify right side
    15,806.97x = 190,498,426.12
  5. Step 5: Solve for x
    x = 190,498,426.12/15,806.97
  6. Step 6: Final answer
    x = 12,051.55

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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.