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Finding the Fourth Proportional to 7,305.88, 10,966.62 and 3,147.94

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Solution

The fourth proportional to 7,305.88, 10,966.62 and 3,147.94 is: 4,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.88 : 10,966.62 = 3,147.94 : x
  2. Step 2: Convert to fraction form
    7,305.88/10,966.62 = 3,147.94/x
  3. Step 3: Cross multiply
    7,305.88x = 10,966.62 × 3,147.94
  4. Step 4: Simplify right side
    7,305.88x = 34,522,261.76
  5. Step 5: Solve for x
    x = 34,522,261.76/7,305.88
  6. Step 6: Final answer
    x = 4,725.27

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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.