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Finding the Fourth Proportional to 61,922.68, 85,475.10 and 36,772

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Solution

The fourth proportional to 61,922.68, 85,475.10 and 36,772 is: 50,758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,922.68 : 85,475.10 = 36,772 : x
  2. Step 2: Convert to fraction form
    61,922.68/85,475.10 = 36,772/x
  3. Step 3: Cross multiply
    61,922.68x = 85,475.10 × 36,772
  4. Step 4: Simplify right side
    61,922.68x = 3,143,090,377.20
  5. Step 5: Solve for x
    x = 3,143,090,377.20/61,922.68
  6. Step 6: Final answer
    x = 50,758.31

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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.