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Finding the Fourth Proportional to 3,672.46, 5,072.13 and 2,491.48

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Solution

The fourth proportional to 3,672.46, 5,072.13 and 2,491.48 is: 3,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.46 : 5,072.13 = 2,491.48 : x
  2. Step 2: Convert to fraction form
    3,672.46/5,072.13 = 2,491.48/x
  3. Step 3: Cross multiply
    3,672.46x = 5,072.13 × 2,491.48
  4. Step 4: Simplify right side
    3,672.46x = 12,637,110.45
  5. Step 5: Solve for x
    x = 12,637,110.45/3,672.46
  6. Step 6: Final answer
    x = 3,441.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.