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Finding the Fourth Proportional to 3,940.48, 5,910.48 and 1,167.16

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Solution

The fourth proportional to 3,940.48, 5,910.48 and 1,167.16 is: 1,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.48 : 5,910.48 = 1,167.16 : x
  2. Step 2: Convert to fraction form
    3,940.48/5,910.48 = 1,167.16/x
  3. Step 3: Cross multiply
    3,940.48x = 5,910.48 × 1,167.16
  4. Step 4: Simplify right side
    3,940.48x = 6,898,475.84
  5. Step 5: Solve for x
    x = 6,898,475.84/3,940.48
  6. Step 6: Final answer
    x = 1,750.67

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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.