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Finding the Fourth Proportional to 3,602.55, 5,403.37 and 1,137.62

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Solution

The fourth proportional to 3,602.55, 5,403.37 and 1,137.62 is: 1,706.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.55 : 5,403.37 = 1,137.62 : x
  2. Step 2: Convert to fraction form
    3,602.55/5,403.37 = 1,137.62/x
  3. Step 3: Cross multiply
    3,602.55x = 5,403.37 × 1,137.62
  4. Step 4: Simplify right side
    3,602.55x = 6,146,972.18
  5. Step 5: Solve for x
    x = 6,146,972.18/3,602.55
  6. Step 6: Final answer
    x = 1,706.28

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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.