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Finding the Fourth Proportional to 3,595.67, 5,391.23 and 1,620.89

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Solution

The fourth proportional to 3,595.67, 5,391.23 and 1,620.89 is: 2,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.67 : 5,391.23 = 1,620.89 : x
  2. Step 2: Convert to fraction form
    3,595.67/5,391.23 = 1,620.89/x
  3. Step 3: Cross multiply
    3,595.67x = 5,391.23 × 1,620.89
  4. Step 4: Simplify right side
    3,595.67x = 8,738,555.73
  5. Step 5: Solve for x
    x = 8,738,555.73/3,595.67
  6. Step 6: Final answer
    x = 2,430.30

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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.