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Finding the Fourth Proportional to 61,383.72, 84,710.40 and 35,884.32

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Solution

The fourth proportional to 61,383.72, 84,710.40 and 35,884.32 is: 49,520.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,383.72 : 84,710.40 = 35,884.32 : x
  2. Step 2: Convert to fraction form
    61,383.72/84,710.40 = 35,884.32/x
  3. Step 3: Cross multiply
    61,383.72x = 84,710.40 × 35,884.32
  4. Step 4: Simplify right side
    61,383.72x = 3,039,775,100.93
  5. Step 5: Solve for x
    x = 3,039,775,100.93/61,383.72
  6. Step 6: Final answer
    x = 49,520.87

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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.