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Finding the Fourth Proportional to 61,067.34, 91,614.07 and 18,946.51

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Solution

The fourth proportional to 61,067.34, 91,614.07 and 18,946.51 is: 28,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,067.34 : 91,614.07 = 18,946.51 : x
  2. Step 2: Convert to fraction form
    61,067.34/91,614.07 = 18,946.51/x
  3. Step 3: Cross multiply
    61,067.34x = 91,614.07 × 18,946.51
  4. Step 4: Simplify right side
    61,067.34x = 1,735,766,893.40
  5. Step 5: Solve for x
    x = 1,735,766,893.40/61,067.34
  6. Step 6: Final answer
    x = 28,423.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.