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Finding the Fourth Proportional to 16,750.32, 25,131.96 and 7,986.12

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Solution

The fourth proportional to 16,750.32, 25,131.96 and 7,986.12 is: 11,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,750.32 : 25,131.96 = 7,986.12 : x
  2. Step 2: Convert to fraction form
    16,750.32/25,131.96 = 7,986.12/x
  3. Step 3: Cross multiply
    16,750.32x = 25,131.96 × 7,986.12
  4. Step 4: Simplify right side
    16,750.32x = 200,706,848.40
  5. Step 5: Solve for x
    x = 200,706,848.40/16,750.32
  6. Step 6: Final answer
    x = 11,982.27

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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.