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Finding the Fourth Proportional to 62,771, 86,631.66 and 36,275

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Solution

The fourth proportional to 62,771, 86,631.66 and 36,275 is: 50,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,771 : 86,631.66 = 36,275 : x
  2. Step 2: Convert to fraction form
    62,771/86,631.66 = 36,275/x
  3. Step 3: Cross multiply
    62,771x = 86,631.66 × 36,275
  4. Step 4: Simplify right side
    62,771x = 3,142,563,466.50
  5. Step 5: Solve for x
    x = 3,142,563,466.50/62,771
  6. Step 6: Final answer
    x = 50,063.94

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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.