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Finding the Fourth Proportional to 68,874.24, 103,310.88 and 19,626.24

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Solution

The fourth proportional to 68,874.24, 103,310.88 and 19,626.24 is: 29,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874.24 : 103,310.88 = 19,626.24 : x
  2. Step 2: Convert to fraction form
    68,874.24/103,310.88 = 19,626.24/x
  3. Step 3: Cross multiply
    68,874.24x = 103,310.88 × 19,626.24
  4. Step 4: Simplify right side
    68,874.24x = 2,027,604,125.49
  5. Step 5: Solve for x
    x = 2,027,604,125.49/68,874.24
  6. Step 6: Final answer
    x = 29,439.22

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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.