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Finding the Fourth Proportional to 57,685.68, 79,611.80 and 35,019.44

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Solution

The fourth proportional to 57,685.68, 79,611.80 and 35,019.44 is: 48,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,685.68 : 79,611.80 = 35,019.44 : x
  2. Step 2: Convert to fraction form
    57,685.68/79,611.80 = 35,019.44/x
  3. Step 3: Cross multiply
    57,685.68x = 79,611.80 × 35,019.44
  4. Step 4: Simplify right side
    57,685.68x = 2,787,960,653.39
  5. Step 5: Solve for x
    x = 2,787,960,653.39/57,685.68
  6. Step 6: Final answer
    x = 48,330.20

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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.