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Finding the Fourth Proportional to 61,917.75, 85,446.83 and 35,065.49

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Solution

The fourth proportional to 61,917.75, 85,446.83 and 35,065.49 is: 48,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.75 : 85,446.83 = 35,065.49 : x
  2. Step 2: Convert to fraction form
    61,917.75/85,446.83 = 35,065.49/x
  3. Step 3: Cross multiply
    61,917.75x = 85,446.83 × 35,065.49
  4. Step 4: Simplify right side
    61,917.75x = 2,996,234,746.51
  5. Step 5: Solve for x
    x = 2,996,234,746.51/61,917.75
  6. Step 6: Final answer
    x = 48,390.56

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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.