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Finding the Fourth Proportional to 57,384.44, 86,079.54 and 40,696.82

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Solution

The fourth proportional to 57,384.44, 86,079.54 and 40,696.82 is: 61,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,384.44 : 86,079.54 = 40,696.82 : x
  2. Step 2: Convert to fraction form
    57,384.44/86,079.54 = 40,696.82/x
  3. Step 3: Cross multiply
    57,384.44x = 86,079.54 × 40,696.82
  4. Step 4: Simplify right side
    57,384.44x = 3,503,163,114.67
  5. Step 5: Solve for x
    x = 3,503,163,114.67/57,384.44
  6. Step 6: Final answer
    x = 61,047.27

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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.