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Finding the Fourth Proportional to 47,885.76, 71,861.46 and 16,721.01

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Solution

The fourth proportional to 47,885.76, 71,861.46 and 16,721.01 is: 25,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,885.76 : 71,861.46 = 16,721.01 : x
  2. Step 2: Convert to fraction form
    47,885.76/71,861.46 = 16,721.01/x
  3. Step 3: Cross multiply
    47,885.76x = 71,861.46 × 16,721.01
  4. Step 4: Simplify right side
    47,885.76x = 1,201,596,191.27
  5. Step 5: Solve for x
    x = 1,201,596,191.27/47,885.76
  6. Step 6: Final answer
    x = 25,092.98

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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.