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Finding the Fourth Proportional to 57,899.70, 79,903.02 and 32,405.86

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Solution

The fourth proportional to 57,899.70, 79,903.02 and 32,405.86 is: 44,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,899.70 : 79,903.02 = 32,405.86 : x
  2. Step 2: Convert to fraction form
    57,899.70/79,903.02 = 32,405.86/x
  3. Step 3: Cross multiply
    57,899.70x = 79,903.02 × 32,405.86
  4. Step 4: Simplify right side
    57,899.70x = 2,589,326,079.70
  5. Step 5: Solve for x
    x = 2,589,326,079.70/57,899.70
  6. Step 6: Final answer
    x = 44,720.89

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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.