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Finding the Fourth Proportional to 73,085.26, 100,857.78 and 39,551.26

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Solution

The fourth proportional to 73,085.26, 100,857.78 and 39,551.26 is: 54,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.26 : 100,857.78 = 39,551.26 : x
  2. Step 2: Convert to fraction form
    73,085.26/100,857.78 = 39,551.26/x
  3. Step 3: Cross multiply
    73,085.26x = 100,857.78 × 39,551.26
  4. Step 4: Simplify right side
    73,085.26x = 3,989,052,279.80
  5. Step 5: Solve for x
    x = 3,989,052,279.80/73,085.26
  6. Step 6: Final answer
    x = 54,580.80

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1.5x scale

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.