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Finding the Fourth Proportional to 47,764.70, 71,661.45 and 25,588.70

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Solution

The fourth proportional to 47,764.70, 71,661.45 and 25,588.70 is: 38,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,764.70 : 71,661.45 = 25,588.70 : x
  2. Step 2: Convert to fraction form
    47,764.70/71,661.45 = 25,588.70/x
  3. Step 3: Cross multiply
    47,764.70x = 71,661.45 × 25,588.70
  4. Step 4: Simplify right side
    47,764.70x = 1,833,723,345.62
  5. Step 5: Solve for x
    x = 1,833,723,345.62/47,764.70
  6. Step 6: Final answer
    x = 38,390.76

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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.