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Finding the Fourth Proportional to 60,644.34, 90,978.70 and 25,583.84

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Solution

The fourth proportional to 60,644.34, 90,978.70 and 25,583.84 is: 38,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,644.34 : 90,978.70 = 25,583.84 : x
  2. Step 2: Convert to fraction form
    60,644.34/90,978.70 = 25,583.84/x
  3. Step 3: Cross multiply
    60,644.34x = 90,978.70 × 25,583.84
  4. Step 4: Simplify right side
    60,644.34x = 2,327,584,504.21
  5. Step 5: Solve for x
    x = 2,327,584,504.21/60,644.34
  6. Step 6: Final answer
    x = 38,380.90

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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.