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Finding the Fourth Proportional to 57,900.70, 79,904.40 and 32,406.85

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Solution

The fourth proportional to 57,900.70, 79,904.40 and 32,406.85 is: 44,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,900.70 : 79,904.40 = 32,406.85 : x
  2. Step 2: Convert to fraction form
    57,900.70/79,904.40 = 32,406.85/x
  3. Step 3: Cross multiply
    57,900.70x = 79,904.40 × 32,406.85
  4. Step 4: Simplify right side
    57,900.70x = 2,589,449,905.14
  5. Step 5: Solve for x
    x = 2,589,449,905.14/57,900.70
  6. Step 6: Final answer
    x = 44,722.26

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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.