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Finding the Fourth Proportional to 9,908.87, 14,834.48 and 8,531.06

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Solution

The fourth proportional to 9,908.87, 14,834.48 and 8,531.06 is: 12,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.87 : 14,834.48 = 8,531.06 : x
  2. Step 2: Convert to fraction form
    9,908.87/14,834.48 = 8,531.06/x
  3. Step 3: Cross multiply
    9,908.87x = 14,834.48 × 8,531.06
  4. Step 4: Simplify right side
    9,908.87x = 126,553,722.12
  5. Step 5: Solve for x
    x = 126,553,722.12/9,908.87
  6. Step 6: Final answer
    x = 12,771.77

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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.