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Finding the Fourth Proportional to 64,868.74, 89,521.38 and 36,573.82

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Solution

The fourth proportional to 64,868.74, 89,521.38 and 36,573.82 is: 50,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,868.74 : 89,521.38 = 36,573.82 : x
  2. Step 2: Convert to fraction form
    64,868.74/89,521.38 = 36,573.82/x
  3. Step 3: Cross multiply
    64,868.74x = 89,521.38 × 36,573.82
  4. Step 4: Simplify right side
    64,868.74x = 3,274,138,838.27
  5. Step 5: Solve for x
    x = 3,274,138,838.27/64,868.74
  6. Step 6: Final answer
    x = 50,473.29

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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.