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Finding the Fourth Proportional to 61,893.72, 92,842.46 and 15,146.68

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Solution

The fourth proportional to 61,893.72, 92,842.46 and 15,146.68 is: 22,720.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,893.72 : 92,842.46 = 15,146.68 : x
  2. Step 2: Convert to fraction form
    61,893.72/92,842.46 = 15,146.68/x
  3. Step 3: Cross multiply
    61,893.72x = 92,842.46 × 15,146.68
  4. Step 4: Simplify right side
    61,893.72x = 1,406,255,032.03
  5. Step 5: Solve for x
    x = 1,406,255,032.03/61,893.72
  6. Step 6: Final answer
    x = 22,720.48

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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.