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Finding the Fourth Proportional to 61,819.82, 92,728.71 and 19,699.32

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Solution

The fourth proportional to 61,819.82, 92,728.71 and 19,699.32 is: 29,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,819.82 : 92,728.71 = 19,699.32 : x
  2. Step 2: Convert to fraction form
    61,819.82/92,728.71 = 19,699.32/x
  3. Step 3: Cross multiply
    61,819.82x = 92,728.71 × 19,699.32
  4. Step 4: Simplify right side
    61,819.82x = 1,826,692,879.21
  5. Step 5: Solve for x
    x = 1,826,692,879.21/61,819.82
  6. Step 6: Final answer
    x = 29,548.66

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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.