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Finding the Fourth Proportional to 61,122.52, 84,344.79 and 33,898.15

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Solution

The fourth proportional to 61,122.52, 84,344.79 and 33,898.15 is: 46,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,122.52 : 84,344.79 = 33,898.15 : x
  2. Step 2: Convert to fraction form
    61,122.52/84,344.79 = 33,898.15/x
  3. Step 3: Cross multiply
    61,122.52x = 84,344.79 × 33,898.15
  4. Step 4: Simplify right side
    61,122.52x = 2,859,132,343.14
  5. Step 5: Solve for x
    x = 2,859,132,343.14/61,122.52
  6. Step 6: Final answer
    x = 46,777.07

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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.