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Finding the Fourth Proportional to 61,768.44, 85,195.44 and 39,111.12

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Solution

The fourth proportional to 61,768.44, 85,195.44 and 39,111.12 is: 53,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,768.44 : 85,195.44 = 39,111.12 : x
  2. Step 2: Convert to fraction form
    61,768.44/85,195.44 = 39,111.12/x
  3. Step 3: Cross multiply
    61,768.44x = 85,195.44 × 39,111.12
  4. Step 4: Simplify right side
    61,768.44x = 3,332,089,077.29
  5. Step 5: Solve for x
    x = 3,332,089,077.29/61,768.44
  6. Step 6: Final answer
    x = 53,944.85

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1.5x scale

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.