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Finding the Fourth Proportional to 64,583.05, 89,121.82 and 35,902.65

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Solution

The fourth proportional to 64,583.05, 89,121.82 and 35,902.65 is: 49,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,583.05 : 89,121.82 = 35,902.65 : x
  2. Step 2: Convert to fraction form
    64,583.05/89,121.82 = 35,902.65/x
  3. Step 3: Cross multiply
    64,583.05x = 89,121.82 × 35,902.65
  4. Step 4: Simplify right side
    64,583.05x = 3,199,709,510.82
  5. Step 5: Solve for x
    x = 3,199,709,510.82/64,583.05
  6. Step 6: Final answer
    x = 49,544.11

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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.