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Finding the Fourth Proportional to 9,908.10, 14,874.30 and 5,469.30

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Solution

The fourth proportional to 9,908.10, 14,874.30 and 5,469.30 is: 8,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.10 : 14,874.30 = 5,469.30 : x
  2. Step 2: Convert to fraction form
    9,908.10/14,874.30 = 5,469.30/x
  3. Step 3: Cross multiply
    9,908.10x = 14,874.30 × 5,469.30
  4. Step 4: Simplify right side
    9,908.10x = 81,352,008.99
  5. Step 5: Solve for x
    x = 81,352,008.99/9,908.10
  6. Step 6: Final answer
    x = 8,210.66

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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.