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Finding the Fourth Proportional to 8,745.46, 11,984.63 and 7,904.68

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Solution

The fourth proportional to 8,745.46, 11,984.63 and 7,904.68 is: 10,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.46 : 11,984.63 = 7,904.68 : x
  2. Step 2: Convert to fraction form
    8,745.46/11,984.63 = 7,904.68/x
  3. Step 3: Cross multiply
    8,745.46x = 11,984.63 × 7,904.68
  4. Step 4: Simplify right side
    8,745.46x = 94,734,665.07
  5. Step 5: Solve for x
    x = 94,734,665.07/8,745.46
  6. Step 6: Final answer
    x = 10,832.44

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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.