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Finding the Fourth Proportional to 61,647.66, 85,073.94 and 34,790.22

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Solution

The fourth proportional to 61,647.66, 85,073.94 and 34,790.22 is: 48,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,647.66 : 85,073.94 = 34,790.22 : x
  2. Step 2: Convert to fraction form
    61,647.66/85,073.94 = 34,790.22/x
  3. Step 3: Cross multiply
    61,647.66x = 85,073.94 × 34,790.22
  4. Step 4: Simplify right side
    61,647.66x = 2,959,741,088.87
  5. Step 5: Solve for x
    x = 2,959,741,088.87/61,647.66
  6. Step 6: Final answer
    x = 48,010.60

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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.