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Finding the Fourth Proportional to 7,976.52, 11,966.91 and 7,104.99

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Solution

The fourth proportional to 7,976.52, 11,966.91 and 7,104.99 is: 10,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.52 : 11,966.91 = 7,104.99 : x
  2. Step 2: Convert to fraction form
    7,976.52/11,966.91 = 7,104.99/x
  3. Step 3: Cross multiply
    7,976.52x = 11,966.91 × 7,104.99
  4. Step 4: Simplify right side
    7,976.52x = 85,024,775.88
  5. Step 5: Solve for x
    x = 85,024,775.88/7,976.52
  6. Step 6: Final answer
    x = 10,659.38

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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.