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Finding the Fourth Proportional to 8,975.15, 13,491.89 and 8,054.99

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Solution

The fourth proportional to 8,975.15, 13,491.89 and 8,054.99 is: 12,108.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.15 : 13,491.89 = 8,054.99 : x
  2. Step 2: Convert to fraction form
    8,975.15/13,491.89 = 8,054.99/x
  3. Step 3: Cross multiply
    8,975.15x = 13,491.89 × 8,054.99
  4. Step 4: Simplify right side
    8,975.15x = 108,677,039.03
  5. Step 5: Solve for x
    x = 108,677,039.03/8,975.15
  6. Step 6: Final answer
    x = 12,108.66

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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.