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Finding the Fourth Proportional to 6,734.04, 9,293.04 and 3,939

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Solution

The fourth proportional to 6,734.04, 9,293.04 and 3,939 is: 5,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,734.04 : 9,293.04 = 3,939 : x
  2. Step 2: Convert to fraction form
    6,734.04/9,293.04 = 3,939/x
  3. Step 3: Cross multiply
    6,734.04x = 9,293.04 × 3,939
  4. Step 4: Simplify right side
    6,734.04x = 36,605,284.56
  5. Step 5: Solve for x
    x = 36,605,284.56/6,734.04
  6. Step 6: Final answer
    x = 5,435.86

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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.