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Finding the Fourth Proportional to 61,994.72, 92,978.42 and 30,373.44

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Solution

The fourth proportional to 61,994.72, 92,978.42 and 30,373.44 is: 45,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,994.72 : 92,978.42 = 30,373.44 : x
  2. Step 2: Convert to fraction form
    61,994.72/92,978.42 = 30,373.44/x
  3. Step 3: Cross multiply
    61,994.72x = 92,978.42 × 30,373.44
  4. Step 4: Simplify right side
    61,994.72x = 2,824,073,960.63
  5. Step 5: Solve for x
    x = 2,824,073,960.63/61,994.72
  6. Step 6: Final answer
    x = 45,553.46

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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.