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Finding the Fourth Proportional to 57,689.36, 79,611.32 and 32,538.88

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Solution

The fourth proportional to 57,689.36, 79,611.32 and 32,538.88 is: 44,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,689.36 : 79,611.32 = 32,538.88 : x
  2. Step 2: Convert to fraction form
    57,689.36/79,611.32 = 32,538.88/x
  3. Step 3: Cross multiply
    57,689.36x = 79,611.32 × 32,538.88
  4. Step 4: Simplify right side
    57,689.36x = 2,590,463,188.12
  5. Step 5: Solve for x
    x = 2,590,463,188.12/57,689.36
  6. Step 6: Final answer
    x = 44,903.66

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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.