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Finding the Fourth Proportional to 9,069.94, 12,512.94 and 5,239.05

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Solution

The fourth proportional to 9,069.94, 12,512.94 and 5,239.05 is: 7,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,069.94 : 12,512.94 = 5,239.05 : x
  2. Step 2: Convert to fraction form
    9,069.94/12,512.94 = 5,239.05/x
  3. Step 3: Cross multiply
    9,069.94x = 12,512.94 × 5,239.05
  4. Step 4: Simplify right side
    9,069.94x = 65,555,855.74
  5. Step 5: Solve for x
    x = 65,555,855.74/9,069.94
  6. Step 6: Final answer
    x = 7,227.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.