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Finding the Fourth Proportional to 3,592.58, 5,388.87 and 1,638.98

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Solution

The fourth proportional to 3,592.58, 5,388.87 and 1,638.98 is: 2,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.58 : 5,388.87 = 1,638.98 : x
  2. Step 2: Convert to fraction form
    3,592.58/5,388.87 = 1,638.98/x
  3. Step 3: Cross multiply
    3,592.58x = 5,388.87 × 1,638.98
  4. Step 4: Simplify right side
    3,592.58x = 8,832,250.15
  5. Step 5: Solve for x
    x = 8,832,250.15/3,592.58
  6. Step 6: Final answer
    x = 2,458.47

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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.