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Finding the Fourth Proportional to 15,763.30, 21,753.08 and 8,593.29

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Solution

The fourth proportional to 15,763.30, 21,753.08 and 8,593.29 is: 11,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.30 : 21,753.08 = 8,593.29 : x
  2. Step 2: Convert to fraction form
    15,763.30/21,753.08 = 8,593.29/x
  3. Step 3: Cross multiply
    15,763.30x = 21,753.08 × 8,593.29
  4. Step 4: Simplify right side
    15,763.30x = 186,930,524.83
  5. Step 5: Solve for x
    x = 186,930,524.83/15,763.30
  6. Step 6: Final answer
    x = 11,858.59

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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.