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Finding the Fourth Proportional to 26,678.70, 40,020.08 and 7,957.27

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Solution

The fourth proportional to 26,678.70, 40,020.08 and 7,957.27 is: 11,936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,678.70 : 40,020.08 = 7,957.27 : x
  2. Step 2: Convert to fraction form
    26,678.70/40,020.08 = 7,957.27/x
  3. Step 3: Cross multiply
    26,678.70x = 40,020.08 × 7,957.27
  4. Step 4: Simplify right side
    26,678.70x = 318,450,592.22
  5. Step 5: Solve for x
    x = 318,450,592.22/26,678.70
  6. Step 6: Final answer
    x = 11,936.51

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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.