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Finding the Fourth Proportional to 26,786.16, 40,174.02 and 19,700.28

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Solution

The fourth proportional to 26,786.16, 40,174.02 and 19,700.28 is: 29,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,786.16 : 40,174.02 = 19,700.28 : x
  2. Step 2: Convert to fraction form
    26,786.16/40,174.02 = 19,700.28/x
  3. Step 3: Cross multiply
    26,786.16x = 40,174.02 × 19,700.28
  4. Step 4: Simplify right side
    26,786.16x = 791,439,442.73
  5. Step 5: Solve for x
    x = 791,439,442.73/26,786.16
  6. Step 6: Final answer
    x = 29,546.58

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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.