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Finding the Fourth Proportional to 29,894.80, 44,793.60 and 18,781.60

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Solution

The fourth proportional to 29,894.80, 44,793.60 and 18,781.60 is: 28,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,894.80 : 44,793.60 = 18,781.60 : x
  2. Step 2: Convert to fraction form
    29,894.80/44,793.60 = 18,781.60/x
  3. Step 3: Cross multiply
    29,894.80x = 44,793.60 × 18,781.60
  4. Step 4: Simplify right side
    29,894.80x = 841,295,477.76
  5. Step 5: Solve for x
    x = 841,295,477.76/29,894.80
  6. Step 6: Final answer
    x = 28,141.87

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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.