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Finding the Fourth Proportional to 47,213.80, 70,793.70 and 17,632.60

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Solution

The fourth proportional to 47,213.80, 70,793.70 and 17,632.60 is: 26,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,213.80 : 70,793.70 = 17,632.60 : x
  2. Step 2: Convert to fraction form
    47,213.80/70,793.70 = 17,632.60/x
  3. Step 3: Cross multiply
    47,213.80x = 70,793.70 × 17,632.60
  4. Step 4: Simplify right side
    47,213.80x = 1,248,276,994.62
  5. Step 5: Solve for x
    x = 1,248,276,994.62/47,213.80
  6. Step 6: Final answer
    x = 26,438.82

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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.