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Finding the Fourth Proportional to 9,684.68, 13,271.77 and 8,751.56

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Solution

The fourth proportional to 9,684.68, 13,271.77 and 8,751.56 is: 11,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,684.68 : 13,271.77 = 8,751.56 : x
  2. Step 2: Convert to fraction form
    9,684.68/13,271.77 = 8,751.56/x
  3. Step 3: Cross multiply
    9,684.68x = 13,271.77 × 8,751.56
  4. Step 4: Simplify right side
    9,684.68x = 116,148,691.46
  5. Step 5: Solve for x
    x = 116,148,691.46/9,684.68
  6. Step 6: Final answer
    x = 11,993.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.