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Finding the Fourth Proportional to 48,699.75, 72,994.26 and 20,602.29

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Solution

The fourth proportional to 48,699.75, 72,994.26 and 20,602.29 is: 30,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,699.75 : 72,994.26 = 20,602.29 : x
  2. Step 2: Convert to fraction form
    48,699.75/72,994.26 = 20,602.29/x
  3. Step 3: Cross multiply
    48,699.75x = 72,994.26 × 20,602.29
  4. Step 4: Simplify right side
    48,699.75x = 1,503,848,912.86
  5. Step 5: Solve for x
    x = 1,503,848,912.86/48,699.75
  6. Step 6: Final answer
    x = 30,880.01

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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.