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Finding the Fourth Proportional to 61,093.41, 91,654.44 and 18,971.32

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Solution

The fourth proportional to 61,093.41, 91,654.44 and 18,971.32 is: 28,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,093.41 : 91,654.44 = 18,971.32 : x
  2. Step 2: Convert to fraction form
    61,093.41/91,654.44 = 18,971.32/x
  3. Step 3: Cross multiply
    61,093.41x = 91,654.44 × 18,971.32
  4. Step 4: Simplify right side
    61,093.41x = 1,738,805,157.53
  5. Step 5: Solve for x
    x = 1,738,805,157.53/61,093.41
  6. Step 6: Final answer
    x = 28,461.42

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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.