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Finding the Fourth Proportional to 14,593.50, 20,139.04 and 8,305.88

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Solution

The fourth proportional to 14,593.50, 20,139.04 and 8,305.88 is: 11,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,593.50 : 20,139.04 = 8,305.88 : x
  2. Step 2: Convert to fraction form
    14,593.50/20,139.04 = 8,305.88/x
  3. Step 3: Cross multiply
    14,593.50x = 20,139.04 × 8,305.88
  4. Step 4: Simplify right side
    14,593.50x = 167,272,449.56
  5. Step 5: Solve for x
    x = 167,272,449.56/14,593.50
  6. Step 6: Final answer
    x = 11,462.12

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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.