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Finding the Fourth Proportional to 3,461.85, 5,188.23 and 1,899.54

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Solution

The fourth proportional to 3,461.85, 5,188.23 and 1,899.54 is: 2,846.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.85 : 5,188.23 = 1,899.54 : x
  2. Step 2: Convert to fraction form
    3,461.85/5,188.23 = 1,899.54/x
  3. Step 3: Cross multiply
    3,461.85x = 5,188.23 × 1,899.54
  4. Step 4: Simplify right side
    3,461.85x = 9,855,250.41
  5. Step 5: Solve for x
    x = 9,855,250.41/3,461.85
  6. Step 6: Final answer
    x = 2,846.82

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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.