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Finding the Fourth Proportional to 29,767.80, 44,651.70 and 8,991.30

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Solution

The fourth proportional to 29,767.80, 44,651.70 and 8,991.30 is: 13,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,767.80 : 44,651.70 = 8,991.30 : x
  2. Step 2: Convert to fraction form
    29,767.80/44,651.70 = 8,991.30/x
  3. Step 3: Cross multiply
    29,767.80x = 44,651.70 × 8,991.30
  4. Step 4: Simplify right side
    29,767.80x = 401,476,830.21
  5. Step 5: Solve for x
    x = 401,476,830.21/29,767.80
  6. Step 6: Final answer
    x = 13,486.95

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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.