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Finding the Fourth Proportional to 6,941.22, 9,578.54 and 3,957.18

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Solution

The fourth proportional to 6,941.22, 9,578.54 and 3,957.18 is: 5,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,941.22 : 9,578.54 = 3,957.18 : x
  2. Step 2: Convert to fraction form
    6,941.22/9,578.54 = 3,957.18/x
  3. Step 3: Cross multiply
    6,941.22x = 9,578.54 × 3,957.18
  4. Step 4: Simplify right side
    6,941.22x = 37,904,006.92
  5. Step 5: Solve for x
    x = 37,904,006.92/6,941.22
  6. Step 6: Final answer
    x = 5,460.71

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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.