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Finding the Fourth Proportional to 70,555.32, 105,843.24 and 23,821.56

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Solution

The fourth proportional to 70,555.32, 105,843.24 and 23,821.56 is: 35,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,555.32 : 105,843.24 = 23,821.56 : x
  2. Step 2: Convert to fraction form
    70,555.32/105,843.24 = 23,821.56/x
  3. Step 3: Cross multiply
    70,555.32x = 105,843.24 × 23,821.56
  4. Step 4: Simplify right side
    70,555.32x = 2,521,351,092.25
  5. Step 5: Solve for x
    x = 2,521,351,092.25/70,555.32
  6. Step 6: Final answer
    x = 35,735.80

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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.