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Finding the Fourth Proportional to 61,984.99, 85,539.41 and 33,690.61

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Solution

The fourth proportional to 61,984.99, 85,539.41 and 33,690.61 is: 46,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,984.99 : 85,539.41 = 33,690.61 : x
  2. Step 2: Convert to fraction form
    61,984.99/85,539.41 = 33,690.61/x
  3. Step 3: Cross multiply
    61,984.99x = 85,539.41 × 33,690.61
  4. Step 4: Simplify right side
    61,984.99x = 2,881,874,733.49
  5. Step 5: Solve for x
    x = 2,881,874,733.49/61,984.99
  6. Step 6: Final answer
    x = 46,493.11

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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.