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Finding the Fourth Proportional to 47,937.80, 71,906.70 and 14,657.86

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Solution

The fourth proportional to 47,937.80, 71,906.70 and 14,657.86 is: 21,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,937.80 : 71,906.70 = 14,657.86 : x
  2. Step 2: Convert to fraction form
    47,937.80/71,906.70 = 14,657.86/x
  3. Step 3: Cross multiply
    47,937.80x = 71,906.70 × 14,657.86
  4. Step 4: Simplify right side
    47,937.80x = 1,053,997,908.84
  5. Step 5: Solve for x
    x = 1,053,997,908.84/47,937.80
  6. Step 6: Final answer
    x = 21,986.78

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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.