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Finding the Fourth Proportional to 7,940.96, 10,958.52 and 4,404.40

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Solution

The fourth proportional to 7,940.96, 10,958.52 and 4,404.40 is: 6,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.96 : 10,958.52 = 4,404.40 : x
  2. Step 2: Convert to fraction form
    7,940.96/10,958.52 = 4,404.40/x
  3. Step 3: Cross multiply
    7,940.96x = 10,958.52 × 4,404.40
  4. Step 4: Simplify right side
    7,940.96x = 48,265,705.49
  5. Step 5: Solve for x
    x = 48,265,705.49/7,940.96
  6. Step 6: Final answer
    x = 6,078.07

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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.