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Finding the Fourth Proportional to 8,635.51, 11,932.41 and 6,751.90

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Solution

The fourth proportional to 8,635.51, 11,932.41 and 6,751.90 is: 9,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.51 : 11,932.41 = 6,751.90 : x
  2. Step 2: Convert to fraction form
    8,635.51/11,932.41 = 6,751.90/x
  3. Step 3: Cross multiply
    8,635.51x = 11,932.41 × 6,751.90
  4. Step 4: Simplify right side
    8,635.51x = 80,566,439.08
  5. Step 5: Solve for x
    x = 80,566,439.08/8,635.51
  6. Step 6: Final answer
    x = 9,329.67

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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.