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Finding the Fourth Proportional to 61,784.98, 85,263.24 and 33,490.66

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Solution

The fourth proportional to 61,784.98, 85,263.24 and 33,490.66 is: 46,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,784.98 : 85,263.24 = 33,490.66 : x
  2. Step 2: Convert to fraction form
    61,784.98/85,263.24 = 33,490.66/x
  3. Step 3: Cross multiply
    61,784.98x = 85,263.24 × 33,490.66
  4. Step 4: Simplify right side
    61,784.98x = 2,855,522,181.34
  5. Step 5: Solve for x
    x = 2,855,522,181.34/61,784.98
  6. Step 6: Final answer
    x = 46,217.09

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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.