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Finding the Fourth Proportional to 7,570.75, 11,348.75 and 3,620.98

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Solution

The fourth proportional to 7,570.75, 11,348.75 and 3,620.98 is: 5,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.75 : 11,348.75 = 3,620.98 : x
  2. Step 2: Convert to fraction form
    7,570.75/11,348.75 = 3,620.98/x
  3. Step 3: Cross multiply
    7,570.75x = 11,348.75 × 3,620.98
  4. Step 4: Simplify right side
    7,570.75x = 41,093,535.81
  5. Step 5: Solve for x
    x = 41,093,535.81/7,570.75
  6. Step 6: Final answer
    x = 5,427.94

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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.