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Finding the Fourth Proportional to 47,809.88, 65,976.70 and 26,588.69

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Solution

The fourth proportional to 47,809.88, 65,976.70 and 26,588.69 is: 36,691.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,809.88 : 65,976.70 = 26,588.69 : x
  2. Step 2: Convert to fraction form
    47,809.88/65,976.70 = 26,588.69/x
  3. Step 3: Cross multiply
    47,809.88x = 65,976.70 × 26,588.69
  4. Step 4: Simplify right side
    47,809.88x = 1,754,233,890.58
  5. Step 5: Solve for x
    x = 1,754,233,890.58/47,809.88
  6. Step 6: Final answer
    x = 36,691.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.