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Finding the Fourth Proportional to 61,677.51, 85,120.57 and 34,826.61

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Solution

The fourth proportional to 61,677.51, 85,120.57 and 34,826.61 is: 48,063.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,677.51 : 85,120.57 = 34,826.61 : x
  2. Step 2: Convert to fraction form
    61,677.51/85,120.57 = 34,826.61/x
  3. Step 3: Cross multiply
    61,677.51x = 85,120.57 × 34,826.61
  4. Step 4: Simplify right side
    61,677.51x = 2,964,460,894.37
  5. Step 5: Solve for x
    x = 2,964,460,894.37/61,677.51
  6. Step 6: Final answer
    x = 48,063.89

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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.