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Finding the Fourth Proportional to 8,950.75, 13,415.10 and 3,682.47

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Solution

The fourth proportional to 8,950.75, 13,415.10 and 3,682.47 is: 5,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.75 : 13,415.10 = 3,682.47 : x
  2. Step 2: Convert to fraction form
    8,950.75/13,415.10 = 3,682.47/x
  3. Step 3: Cross multiply
    8,950.75x = 13,415.10 × 3,682.47
  4. Step 4: Simplify right side
    8,950.75x = 49,400,703.30
  5. Step 5: Solve for x
    x = 49,400,703.30/8,950.75
  6. Step 6: Final answer
    x = 5,519.17

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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.