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Finding the Fourth Proportional to 40,957.92, 61,425.78 and 17,578.88

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Solution

The fourth proportional to 40,957.92, 61,425.78 and 17,578.88 is: 26,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,957.92 : 61,425.78 = 17,578.88 : x
  2. Step 2: Convert to fraction form
    40,957.92/61,425.78 = 17,578.88/x
  3. Step 3: Cross multiply
    40,957.92x = 61,425.78 × 17,578.88
  4. Step 4: Simplify right side
    40,957.92x = 1,079,796,415.53
  5. Step 5: Solve for x
    x = 1,079,796,415.53/40,957.92
  6. Step 6: Final answer
    x = 26,363.56

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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.