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Finding the Fourth Proportional to 61,893.78, 92,854 and 19,763.96

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Solution

The fourth proportional to 61,893.78, 92,854 and 19,763.96 is: 29,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,893.78 : 92,854 = 19,763.96 : x
  2. Step 2: Convert to fraction form
    61,893.78/92,854 = 19,763.96/x
  3. Step 3: Cross multiply
    61,893.78x = 92,854 × 19,763.96
  4. Step 4: Simplify right side
    61,893.78x = 1,835,162,741.84
  5. Step 5: Solve for x
    x = 1,835,162,741.84/61,893.78
  6. Step 6: Final answer
    x = 29,650.20

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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.