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Finding the Fourth Proportional to 57,364.84, 79,229.72 and 38,213.08

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Solution

The fourth proportional to 57,364.84, 79,229.72 and 38,213.08 is: 52,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,364.84 : 79,229.72 = 38,213.08 : x
  2. Step 2: Convert to fraction form
    57,364.84/79,229.72 = 38,213.08/x
  3. Step 3: Cross multiply
    57,364.84x = 79,229.72 × 38,213.08
  4. Step 4: Simplify right side
    57,364.84x = 3,027,611,628.74
  5. Step 5: Solve for x
    x = 3,027,611,628.74/57,364.84
  6. Step 6: Final answer
    x = 52,778.18

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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.