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Finding the Fourth Proportional to 40,495.72, 60,750.70 and 13,835.44

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Solution

The fourth proportional to 40,495.72, 60,750.70 and 13,835.44 is: 20,755.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,495.72 : 60,750.70 = 13,835.44 : x
  2. Step 2: Convert to fraction form
    40,495.72/60,750.70 = 13,835.44/x
  3. Step 3: Cross multiply
    40,495.72x = 60,750.70 × 13,835.44
  4. Step 4: Simplify right side
    40,495.72x = 840,512,664.81
  5. Step 5: Solve for x
    x = 840,512,664.81/40,495.72
  6. Step 6: Final answer
    x = 20,755.59

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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.