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Finding the Fourth Proportional to 3,676.36, 5,503.02 and 1,939.72

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Solution

The fourth proportional to 3,676.36, 5,503.02 and 1,939.72 is: 2,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.36 : 5,503.02 = 1,939.72 : x
  2. Step 2: Convert to fraction form
    3,676.36/5,503.02 = 1,939.72/x
  3. Step 3: Cross multiply
    3,676.36x = 5,503.02 × 1,939.72
  4. Step 4: Simplify right side
    3,676.36x = 10,674,317.95
  5. Step 5: Solve for x
    x = 10,674,317.95/3,676.36
  6. Step 6: Final answer
    x = 2,903.50

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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.