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Finding the Fourth Proportional to 50,696.58, 69,943.95 and 30,545.88

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Solution

The fourth proportional to 50,696.58, 69,943.95 and 30,545.88 is: 42,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,696.58 : 69,943.95 = 30,545.88 : x
  2. Step 2: Convert to fraction form
    50,696.58/69,943.95 = 30,545.88/x
  3. Step 3: Cross multiply
    50,696.58x = 69,943.95 × 30,545.88
  4. Step 4: Simplify right side
    50,696.58x = 2,136,499,503.43
  5. Step 5: Solve for x
    x = 2,136,499,503.43/50,696.58
  6. Step 6: Final answer
    x = 42,142.87

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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.