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Finding the Fourth Proportional to 5,000.61, 7,485.18 and 3,431.44

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Solution

The fourth proportional to 5,000.61, 7,485.18 and 3,431.44 is: 5,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.61 : 7,485.18 = 3,431.44 : x
  2. Step 2: Convert to fraction form
    5,000.61/7,485.18 = 3,431.44/x
  3. Step 3: Cross multiply
    5,000.61x = 7,485.18 × 3,431.44
  4. Step 4: Simplify right side
    5,000.61x = 25,684,946.06
  5. Step 5: Solve for x
    x = 25,684,946.06/5,000.61
  6. Step 6: Final answer
    x = 5,136.36

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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.