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Finding the Fourth Proportional to 70,821.44, 106,232.42 and 26,447.72

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Solution

The fourth proportional to 70,821.44, 106,232.42 and 26,447.72 is: 39,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.44 : 106,232.42 = 26,447.72 : x
  2. Step 2: Convert to fraction form
    70,821.44/106,232.42 = 26,447.72/x
  3. Step 3: Cross multiply
    70,821.44x = 106,232.42 × 26,447.72
  4. Step 4: Simplify right side
    70,821.44x = 2,809,605,299.08
  5. Step 5: Solve for x
    x = 2,809,605,299.08/70,821.44
  6. Step 6: Final answer
    x = 39,671.68

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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.