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Finding the Fourth Proportional to 65,279.80, 97,828.26 and 27,789.22

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Solution

The fourth proportional to 65,279.80, 97,828.26 and 27,789.22 is: 41,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,279.80 : 97,828.26 = 27,789.22 : x
  2. Step 2: Convert to fraction form
    65,279.80/97,828.26 = 27,789.22/x
  3. Step 3: Cross multiply
    65,279.80x = 97,828.26 × 27,789.22
  4. Step 4: Simplify right side
    65,279.80x = 2,718,571,039.36
  5. Step 5: Solve for x
    x = 2,718,571,039.36/65,279.80
  6. Step 6: Final answer
    x = 41,644.90

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1.5x scale

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.