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Finding the Fourth Proportional to 20,000.68, 27,599.34 and 11,617.72

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Solution

The fourth proportional to 20,000.68, 27,599.34 and 11,617.72 is: 16,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.68 : 27,599.34 = 11,617.72 : x
  2. Step 2: Convert to fraction form
    20,000.68/27,599.34 = 11,617.72/x
  3. Step 3: Cross multiply
    20,000.68x = 27,599.34 × 11,617.72
  4. Step 4: Simplify right side
    20,000.68x = 320,641,404.30
  5. Step 5: Solve for x
    x = 320,641,404.30/20,000.68
  6. Step 6: Final answer
    x = 16,031.53

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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.