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Finding the Fourth Proportional to 7,316.70, 10,958.85 and 3,849.90

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Solution

The fourth proportional to 7,316.70, 10,958.85 and 3,849.90 is: 5,766.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.70 : 10,958.85 = 3,849.90 : x
  2. Step 2: Convert to fraction form
    7,316.70/10,958.85 = 3,849.90/x
  3. Step 3: Cross multiply
    7,316.70x = 10,958.85 × 3,849.90
  4. Step 4: Simplify right side
    7,316.70x = 42,190,476.62
  5. Step 5: Solve for x
    x = 42,190,476.62/7,316.70
  6. Step 6: Final answer
    x = 5,766.33

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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.