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Finding the Fourth Proportional to 19,125.99, 28,687.87 and 8,593.29

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Solution

The fourth proportional to 19,125.99, 28,687.87 and 8,593.29 is: 12,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.99 : 28,687.87 = 8,593.29 : x
  2. Step 2: Convert to fraction form
    19,125.99/28,687.87 = 8,593.29/x
  3. Step 3: Cross multiply
    19,125.99x = 28,687.87 × 8,593.29
  4. Step 4: Simplify right side
    19,125.99x = 246,523,186.39
  5. Step 5: Solve for x
    x = 246,523,186.39/19,125.99
  6. Step 6: Final answer
    x = 12,889.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.