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Finding the Fourth Proportional to 13,168.70, 19,753.17 and 3,934.70

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Solution

The fourth proportional to 13,168.70, 19,753.17 and 3,934.70 is: 5,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.70 : 19,753.17 = 3,934.70 : x
  2. Step 2: Convert to fraction form
    13,168.70/19,753.17 = 3,934.70/x
  3. Step 3: Cross multiply
    13,168.70x = 19,753.17 × 3,934.70
  4. Step 4: Simplify right side
    13,168.70x = 77,722,798.00
  5. Step 5: Solve for x
    x = 77,722,798.00/13,168.70
  6. Step 6: Final answer
    x = 5,902.09

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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.