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Finding the Fourth Proportional to 57,489.50, 79,342.80 and 32,343.86

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Solution

The fourth proportional to 57,489.50, 79,342.80 and 32,343.86 is: 44,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,489.50 : 79,342.80 = 32,343.86 : x
  2. Step 2: Convert to fraction form
    57,489.50/79,342.80 = 32,343.86/x
  3. Step 3: Cross multiply
    57,489.50x = 79,342.80 × 32,343.86
  4. Step 4: Simplify right side
    57,489.50x = 2,566,252,415.21
  5. Step 5: Solve for x
    x = 2,566,252,415.21/57,489.50
  6. Step 6: Final answer
    x = 44,638.63

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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.