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Finding the Fourth Proportional to 2,611.85, 3,604.10 and 1,492.43

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Solution

The fourth proportional to 2,611.85, 3,604.10 and 1,492.43 is: 2,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.85 : 3,604.10 = 1,492.43 : x
  2. Step 2: Convert to fraction form
    2,611.85/3,604.10 = 1,492.43/x
  3. Step 3: Cross multiply
    2,611.85x = 3,604.10 × 1,492.43
  4. Step 4: Simplify right side
    2,611.85x = 5,378,841.48
  5. Step 5: Solve for x
    x = 5,378,841.48/2,611.85
  6. Step 6: Final answer
    x = 2,059.40

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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.