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Finding the Fourth Proportional to 57,725.40, 79,660.80 and 32,574.90

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Solution

The fourth proportional to 57,725.40, 79,660.80 and 32,574.90 is: 44,953.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,725.40 : 79,660.80 = 32,574.90 : x
  2. Step 2: Convert to fraction form
    57,725.40/79,660.80 = 32,574.90/x
  3. Step 3: Cross multiply
    57,725.40x = 79,660.80 × 32,574.90
  4. Step 4: Simplify right side
    57,725.40x = 2,594,942,593.92
  5. Step 5: Solve for x
    x = 2,594,942,593.92/57,725.40
  6. Step 6: Final answer
    x = 44,953.22

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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.