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Finding the Fourth Proportional to 9,621.03, 14,439.11 and 4,940.85

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Solution

The fourth proportional to 9,621.03, 14,439.11 and 4,940.85 is: 7,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.03 : 14,439.11 = 4,940.85 : x
  2. Step 2: Convert to fraction form
    9,621.03/14,439.11 = 4,940.85/x
  3. Step 3: Cross multiply
    9,621.03x = 14,439.11 × 4,940.85
  4. Step 4: Simplify right side
    9,621.03x = 71,341,451.94
  5. Step 5: Solve for x
    x = 71,341,451.94/9,621.03
  6. Step 6: Final answer
    x = 7,415.16

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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.