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Finding the Fourth Proportional to 8,450.94, 12,661.48 and 7,534.63

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Solution

The fourth proportional to 8,450.94, 12,661.48 and 7,534.63 is: 11,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.94 : 12,661.48 = 7,534.63 : x
  2. Step 2: Convert to fraction form
    8,450.94/12,661.48 = 7,534.63/x
  3. Step 3: Cross multiply
    8,450.94x = 12,661.48 × 7,534.63
  4. Step 4: Simplify right side
    8,450.94x = 95,399,592.30
  5. Step 5: Solve for x
    x = 95,399,592.30/8,450.94
  6. Step 6: Final answer
    x = 11,288.63

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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.