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Finding the Fourth Proportional to 80,522.34, 120,733.90 and 27,209.28

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Solution

The fourth proportional to 80,522.34, 120,733.90 and 27,209.28 is: 40,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,522.34 : 120,733.90 = 27,209.28 : x
  2. Step 2: Convert to fraction form
    80,522.34/120,733.90 = 27,209.28/x
  3. Step 3: Cross multiply
    80,522.34x = 120,733.90 × 27,209.28
  4. Step 4: Simplify right side
    80,522.34x = 3,285,082,603.69
  5. Step 5: Solve for x
    x = 3,285,082,603.69/80,522.34
  6. Step 6: Final answer
    x = 40,797.16

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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.