Home / 47,908.70-71,857.58-12,845.63

Finding the Fourth Proportional to 47,908.70, 71,857.58 and 12,845.63

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Solution

The fourth proportional to 47,908.70, 71,857.58 and 12,845.63 is: 19,266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,908.70 : 71,857.58 = 12,845.63 : x
  2. Step 2: Convert to fraction form
    47,908.70/71,857.58 = 12,845.63/x
  3. Step 3: Cross multiply
    47,908.70x = 71,857.58 × 12,845.63
  4. Step 4: Simplify right side
    47,908.70x = 923,055,461.86
  5. Step 5: Solve for x
    x = 923,055,461.86/47,908.70
  6. Step 6: Final answer
    x = 19,266.97

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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.