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Finding the Fourth Proportional to 57,019.80, 85,529.70 and 23,728.80

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Solution

The fourth proportional to 57,019.80, 85,529.70 and 23,728.80 is: 35,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,019.80 : 85,529.70 = 23,728.80 : x
  2. Step 2: Convert to fraction form
    57,019.80/85,529.70 = 23,728.80/x
  3. Step 3: Cross multiply
    57,019.80x = 85,529.70 × 23,728.80
  4. Step 4: Simplify right side
    57,019.80x = 2,029,517,145.36
  5. Step 5: Solve for x
    x = 2,029,517,145.36/57,019.80
  6. Step 6: Final answer
    x = 35,593.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.