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Finding the Fourth Proportional to 3,651.75, 5,476.70 and 1,894.66

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Solution

The fourth proportional to 3,651.75, 5,476.70 and 1,894.66 is: 2,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.75 : 5,476.70 = 1,894.66 : x
  2. Step 2: Convert to fraction form
    3,651.75/5,476.70 = 1,894.66/x
  3. Step 3: Cross multiply
    3,651.75x = 5,476.70 × 1,894.66
  4. Step 4: Simplify right side
    3,651.75x = 10,376,475.47
  5. Step 5: Solve for x
    x = 10,376,475.47/3,651.75
  6. Step 6: Final answer
    x = 2,841.51

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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.