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Finding the Fourth Proportional to 47,159.85, 65,081.01 and 25,649.79

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Solution

The fourth proportional to 47,159.85, 65,081.01 and 25,649.79 is: 35,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,159.85 : 65,081.01 = 25,649.79 : x
  2. Step 2: Convert to fraction form
    47,159.85/65,081.01 = 25,649.79/x
  3. Step 3: Cross multiply
    47,159.85x = 65,081.01 × 25,649.79
  4. Step 4: Simplify right side
    47,159.85x = 1,669,314,239.49
  5. Step 5: Solve for x
    x = 1,669,314,239.49/47,159.85
  6. Step 6: Final answer
    x = 35,396.94

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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.