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Finding the Fourth Proportional to 57,357.41, 86,036.11 and 17,917.63

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Solution

The fourth proportional to 57,357.41, 86,036.11 and 17,917.63 is: 26,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,357.41 : 86,036.11 = 17,917.63 : x
  2. Step 2: Convert to fraction form
    57,357.41/86,036.11 = 17,917.63/x
  3. Step 3: Cross multiply
    57,357.41x = 86,036.11 × 17,917.63
  4. Step 4: Simplify right side
    57,357.41x = 1,541,562,925.73
  5. Step 5: Solve for x
    x = 1,541,562,925.73/57,357.41
  6. Step 6: Final answer
    x = 26,876.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.