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Finding the Fourth Proportional to 61,008.63, 84,187.79 and 33,782.75

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Solution

The fourth proportional to 61,008.63, 84,187.79 and 33,782.75 is: 46,617.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,008.63 : 84,187.79 = 33,782.75 : x
  2. Step 2: Convert to fraction form
    61,008.63/84,187.79 = 33,782.75/x
  3. Step 3: Cross multiply
    61,008.63x = 84,187.79 × 33,782.75
  4. Step 4: Simplify right side
    61,008.63x = 2,844,095,062.62
  5. Step 5: Solve for x
    x = 2,844,095,062.62/61,008.63
  6. Step 6: Final answer
    x = 46,617.92

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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.