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Finding the Fourth Proportional to 62,865.75, 86,752.10 and 35,643.67

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Solution

The fourth proportional to 62,865.75, 86,752.10 and 35,643.67 is: 49,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,865.75 : 86,752.10 = 35,643.67 : x
  2. Step 2: Convert to fraction form
    62,865.75/86,752.10 = 35,643.67/x
  3. Step 3: Cross multiply
    62,865.75x = 86,752.10 × 35,643.67
  4. Step 4: Simplify right side
    62,865.75x = 3,092,162,895.94
  5. Step 5: Solve for x
    x = 3,092,162,895.94/62,865.75
  6. Step 6: Final answer
    x = 49,186.76

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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.