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Finding the Fourth Proportional to 61,793.21, 92,717.51 and 28,495.43

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Solution

The fourth proportional to 61,793.21, 92,717.51 and 28,495.43 is: 42,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,793.21 : 92,717.51 = 28,495.43 : x
  2. Step 2: Convert to fraction form
    61,793.21/92,717.51 = 28,495.43/x
  3. Step 3: Cross multiply
    61,793.21x = 92,717.51 × 28,495.43
  4. Step 4: Simplify right side
    61,793.21x = 2,642,024,709.91
  5. Step 5: Solve for x
    x = 2,642,024,709.91/61,793.21
  6. Step 6: Final answer
    x = 42,755.91

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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.