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Finding the Fourth Proportional to 61,415.52, 84,739.68 and 36,251.52

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Solution

The fourth proportional to 61,415.52, 84,739.68 and 36,251.52 is: 50,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.52 : 84,739.68 = 36,251.52 : x
  2. Step 2: Convert to fraction form
    61,415.52/84,739.68 = 36,251.52/x
  3. Step 3: Cross multiply
    61,415.52x = 84,739.68 × 36,251.52
  4. Step 4: Simplify right side
    61,415.52x = 3,071,942,204.31
  5. Step 5: Solve for x
    x = 3,071,942,204.31/61,415.52
  6. Step 6: Final answer
    x = 50,018.99

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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.