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Finding the Fourth Proportional to 61,844.31, 85,345.32 and 33,550

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Solution

The fourth proportional to 61,844.31, 85,345.32 and 33,550 is: 46,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,844.31 : 85,345.32 = 33,550 : x
  2. Step 2: Convert to fraction form
    61,844.31/85,345.32 = 33,550/x
  3. Step 3: Cross multiply
    61,844.31x = 85,345.32 × 33,550
  4. Step 4: Simplify right side
    61,844.31x = 2,863,335,486
  5. Step 5: Solve for x
    x = 2,863,335,486/61,844.31
  6. Step 6: Final answer
    x = 46,299.09

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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.