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Finding the Fourth Proportional to 6,749.49, 9,314.13 and 3,765.31

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Solution

The fourth proportional to 6,749.49, 9,314.13 and 3,765.31 is: 5,196.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.49 : 9,314.13 = 3,765.31 : x
  2. Step 2: Convert to fraction form
    6,749.49/9,314.13 = 3,765.31/x
  3. Step 3: Cross multiply
    6,749.49x = 9,314.13 × 3,765.31
  4. Step 4: Simplify right side
    6,749.49x = 35,070,586.83
  5. Step 5: Solve for x
    x = 35,070,586.83/6,749.49
  6. Step 6: Final answer
    x = 5,196.04

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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.