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Finding the Fourth Proportional to 5,859.74, 8,789.67 and 1,477.20

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Solution

The fourth proportional to 5,859.74, 8,789.67 and 1,477.20 is: 2,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.74 : 8,789.67 = 1,477.20 : x
  2. Step 2: Convert to fraction form
    5,859.74/8,789.67 = 1,477.20/x
  3. Step 3: Cross multiply
    5,859.74x = 8,789.67 × 1,477.20
  4. Step 4: Simplify right side
    5,859.74x = 12,984,100.56
  5. Step 5: Solve for x
    x = 12,984,100.56/5,859.74
  6. Step 6: Final answer
    x = 2,215.81

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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.