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Finding the Fourth Proportional to 3,307.06, 4,936.92 and 3,191.63

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Solution

The fourth proportional to 3,307.06, 4,936.92 and 3,191.63 is: 4,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.06 : 4,936.92 = 3,191.63 : x
  2. Step 2: Convert to fraction form
    3,307.06/4,936.92 = 3,191.63/x
  3. Step 3: Cross multiply
    3,307.06x = 4,936.92 × 3,191.63
  4. Step 4: Simplify right side
    3,307.06x = 15,756,821.98
  5. Step 5: Solve for x
    x = 15,756,821.98/3,307.06
  6. Step 6: Final answer
    x = 4,764.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.