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Finding the Fourth Proportional to 61,067.76, 84,272.04 and 34,211.40

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Solution

The fourth proportional to 61,067.76, 84,272.04 and 34,211.40 is: 47,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,067.76 : 84,272.04 = 34,211.40 : x
  2. Step 2: Convert to fraction form
    61,067.76/84,272.04 = 34,211.40/x
  3. Step 3: Cross multiply
    61,067.76x = 84,272.04 × 34,211.40
  4. Step 4: Simplify right side
    61,067.76x = 2,883,064,469.26
  5. Step 5: Solve for x
    x = 2,883,064,469.26/61,067.76
  6. Step 6: Final answer
    x = 47,210.91

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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.