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Finding the Fourth Proportional to 7,940.97, 10,958.45 and 4,404.15

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Solution

The fourth proportional to 7,940.97, 10,958.45 and 4,404.15 is: 6,077.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.97 : 10,958.45 = 4,404.15 : x
  2. Step 2: Convert to fraction form
    7,940.97/10,958.45 = 4,404.15/x
  3. Step 3: Cross multiply
    7,940.97x = 10,958.45 × 4,404.15
  4. Step 4: Simplify right side
    7,940.97x = 48,262,635.55
  5. Step 5: Solve for x
    x = 48,262,635.55/7,940.97
  6. Step 6: Final answer
    x = 6,077.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.