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Finding the Fourth Proportional to 3,611.04, 5,416.54 and 1,013.96

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Solution

The fourth proportional to 3,611.04, 5,416.54 and 1,013.96 is: 1,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.04 : 5,416.54 = 1,013.96 : x
  2. Step 2: Convert to fraction form
    3,611.04/5,416.54 = 1,013.96/x
  3. Step 3: Cross multiply
    3,611.04x = 5,416.54 × 1,013.96
  4. Step 4: Simplify right side
    3,611.04x = 5,492,154.90
  5. Step 5: Solve for x
    x = 5,492,154.90/3,611.04
  6. Step 6: Final answer
    x = 1,520.93

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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.