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Finding the Fourth Proportional to 31,902.42, 44,015.42 and 18,102.48

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Solution

The fourth proportional to 31,902.42, 44,015.42 and 18,102.48 is: 24,975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.42 : 44,015.42 = 18,102.48 : x
  2. Step 2: Convert to fraction form
    31,902.42/44,015.42 = 18,102.48/x
  3. Step 3: Cross multiply
    31,902.42x = 44,015.42 × 18,102.48
  4. Step 4: Simplify right side
    31,902.42x = 796,788,388.03
  5. Step 5: Solve for x
    x = 796,788,388.03/31,902.42
  6. Step 6: Final answer
    x = 24,975.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.