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Finding the Fourth Proportional to 7,992.35, 11,980.17 and 2,725.52

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Solution

The fourth proportional to 7,992.35, 11,980.17 and 2,725.52 is: 4,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.35 : 11,980.17 = 2,725.52 : x
  2. Step 2: Convert to fraction form
    7,992.35/11,980.17 = 2,725.52/x
  3. Step 3: Cross multiply
    7,992.35x = 11,980.17 × 2,725.52
  4. Step 4: Simplify right side
    7,992.35x = 32,652,172.85
  5. Step 5: Solve for x
    x = 32,652,172.85/7,992.35
  6. Step 6: Final answer
    x = 4,085.43

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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.