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Finding the Fourth Proportional to 20,255.99, 27,953.17 and 11,302.96

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Solution

The fourth proportional to 20,255.99, 27,953.17 and 11,302.96 is: 15,598.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.99 : 27,953.17 = 11,302.96 : x
  2. Step 2: Convert to fraction form
    20,255.99/27,953.17 = 11,302.96/x
  3. Step 3: Cross multiply
    20,255.99x = 27,953.17 × 11,302.96
  4. Step 4: Simplify right side
    20,255.99x = 315,953,562.38
  5. Step 5: Solve for x
    x = 315,953,562.38/20,255.99
  6. Step 6: Final answer
    x = 15,598.03

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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.