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Finding the Fourth Proportional to 6,738.42, 9,293.76 and 4,381.32

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Solution

The fourth proportional to 6,738.42, 9,293.76 and 4,381.32 is: 6,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.42 : 9,293.76 = 4,381.32 : x
  2. Step 2: Convert to fraction form
    6,738.42/9,293.76 = 4,381.32/x
  3. Step 3: Cross multiply
    6,738.42x = 9,293.76 × 4,381.32
  4. Step 4: Simplify right side
    6,738.42x = 40,718,936.56
  5. Step 5: Solve for x
    x = 40,718,936.56/6,738.42
  6. Step 6: Final answer
    x = 6,042.80

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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.