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Finding the Fourth Proportional to 5,859.64, 8,789.34 and 1,477

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Solution

The fourth proportional to 5,859.64, 8,789.34 and 1,477 is: 2,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.64 : 8,789.34 = 1,477 : x
  2. Step 2: Convert to fraction form
    5,859.64/8,789.34 = 1,477/x
  3. Step 3: Cross multiply
    5,859.64x = 8,789.34 × 1,477
  4. Step 4: Simplify right side
    5,859.64x = 12,981,855.18
  5. Step 5: Solve for x
    x = 12,981,855.18/5,859.64
  6. Step 6: Final answer
    x = 2,215.47

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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.