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Finding the Fourth Proportional to 16,679.25, 25,031.16 and 7,914.17

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Solution

The fourth proportional to 16,679.25, 25,031.16 and 7,914.17 is: 11,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.25 : 25,031.16 = 7,914.17 : x
  2. Step 2: Convert to fraction form
    16,679.25/25,031.16 = 7,914.17/x
  3. Step 3: Cross multiply
    16,679.25x = 25,031.16 × 7,914.17
  4. Step 4: Simplify right side
    16,679.25x = 198,100,918.12
  5. Step 5: Solve for x
    x = 198,100,918.12/16,679.25
  6. Step 6: Final answer
    x = 11,877.09

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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.