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Finding the Fourth Proportional to 61,981.93, 85,536.03 and 33,687.69

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Solution

The fourth proportional to 61,981.93, 85,536.03 and 33,687.69 is: 46,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,981.93 : 85,536.03 = 33,687.69 : x
  2. Step 2: Convert to fraction form
    61,981.93/85,536.03 = 33,687.69/x
  3. Step 3: Cross multiply
    61,981.93x = 85,536.03 × 33,687.69
  4. Step 4: Simplify right side
    61,981.93x = 2,881,511,262.47
  5. Step 5: Solve for x
    x = 2,881,511,262.47/61,981.93
  6. Step 6: Final answer
    x = 46,489.54

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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.