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Finding the Fourth Proportional to 61,892.56, 92,851.35 and 19,771.39

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Solution

The fourth proportional to 61,892.56, 92,851.35 and 19,771.39 is: 29,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,892.56 : 92,851.35 = 19,771.39 : x
  2. Step 2: Convert to fraction form
    61,892.56/92,851.35 = 19,771.39/x
  3. Step 3: Cross multiply
    61,892.56x = 92,851.35 × 19,771.39
  4. Step 4: Simplify right side
    61,892.56x = 1,835,800,252.88
  5. Step 5: Solve for x
    x = 1,835,800,252.88/61,892.56
  6. Step 6: Final answer
    x = 29,661.08

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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.