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Finding the Fourth Proportional to 8,453.88, 12,674.70 and 2,607.12

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Solution

The fourth proportional to 8,453.88, 12,674.70 and 2,607.12 is: 3,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.88 : 12,674.70 = 2,607.12 : x
  2. Step 2: Convert to fraction form
    8,453.88/12,674.70 = 2,607.12/x
  3. Step 3: Cross multiply
    8,453.88x = 12,674.70 × 2,607.12
  4. Step 4: Simplify right side
    8,453.88x = 33,044,463.86
  5. Step 5: Solve for x
    x = 33,044,463.86/8,453.88
  6. Step 6: Final answer
    x = 3,908.79

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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.