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Finding the Fourth Proportional to 26,662.31, 39,992.97 and 7,955.04

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Solution

The fourth proportional to 26,662.31, 39,992.97 and 7,955.04 is: 11,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,662.31 : 39,992.97 = 7,955.04 : x
  2. Step 2: Convert to fraction form
    26,662.31/39,992.97 = 7,955.04/x
  3. Step 3: Cross multiply
    26,662.31x = 39,992.97 × 7,955.04
  4. Step 4: Simplify right side
    26,662.31x = 318,145,451.31
  5. Step 5: Solve for x
    x = 318,145,451.31/26,662.31
  6. Step 6: Final answer
    x = 11,932.40

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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.