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Finding the Fourth Proportional to 20,362.70, 30,544.07 and 5,570.51

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Solution

The fourth proportional to 20,362.70, 30,544.07 and 5,570.51 is: 8,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.70 : 30,544.07 = 5,570.51 : x
  2. Step 2: Convert to fraction form
    20,362.70/30,544.07 = 5,570.51/x
  3. Step 3: Cross multiply
    20,362.70x = 30,544.07 × 5,570.51
  4. Step 4: Simplify right side
    20,362.70x = 170,145,866.80
  5. Step 5: Solve for x
    x = 170,145,866.80/20,362.70
  6. Step 6: Final answer
    x = 8,355.76

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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.