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Finding the Fourth Proportional to 15,763.82, 21,753.77 and 8,593.81

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Solution

The fourth proportional to 15,763.82, 21,753.77 and 8,593.81 is: 11,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.82 : 21,753.77 = 8,593.81 : x
  2. Step 2: Convert to fraction form
    15,763.82/21,753.77 = 8,593.81/x
  3. Step 3: Cross multiply
    15,763.82x = 21,753.77 × 8,593.81
  4. Step 4: Simplify right side
    15,763.82x = 186,947,766.16
  5. Step 5: Solve for x
    x = 186,947,766.16/15,763.82
  6. Step 6: Final answer
    x = 11,859.29

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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.