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Finding the Fourth Proportional to 57,669.36, 79,538.94 and 36,440.88

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Solution

The fourth proportional to 57,669.36, 79,538.94 and 36,440.88 is: 50,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,669.36 : 79,538.94 = 36,440.88 : x
  2. Step 2: Convert to fraction form
    57,669.36/79,538.94 = 36,440.88/x
  3. Step 3: Cross multiply
    57,669.36x = 79,538.94 × 36,440.88
  4. Step 4: Simplify right side
    57,669.36x = 2,898,468,967.87
  5. Step 5: Solve for x
    x = 2,898,468,967.87/57,669.36
  6. Step 6: Final answer
    x = 50,260.12

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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.