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Finding the Fourth Proportional to 8,887.40, 12,251.94 and 6,894.44

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Solution

The fourth proportional to 8,887.40, 12,251.94 and 6,894.44 is: 9,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.40 : 12,251.94 = 6,894.44 : x
  2. Step 2: Convert to fraction form
    8,887.40/12,251.94 = 6,894.44/x
  3. Step 3: Cross multiply
    8,887.40x = 12,251.94 × 6,894.44
  4. Step 4: Simplify right side
    8,887.40x = 84,470,265.21
  5. Step 5: Solve for x
    x = 84,470,265.21/8,887.40
  6. Step 6: Final answer
    x = 9,504.50

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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.