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Finding the Fourth Proportional to 61,925.74, 85,458.51 and 33,631.43

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Solution

The fourth proportional to 61,925.74, 85,458.51 and 33,631.43 is: 46,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,925.74 : 85,458.51 = 33,631.43 : x
  2. Step 2: Convert to fraction form
    61,925.74/85,458.51 = 33,631.43/x
  3. Step 3: Cross multiply
    61,925.74x = 85,458.51 × 33,631.43
  4. Step 4: Simplify right side
    61,925.74x = 2,874,091,896.97
  5. Step 5: Solve for x
    x = 2,874,091,896.97/61,925.74
  6. Step 6: Final answer
    x = 46,411.91

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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.