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Finding the Fourth Proportional to 8,188.63, 12,284.73 and 2,994.50

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Solution

The fourth proportional to 8,188.63, 12,284.73 and 2,994.50 is: 4,492.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.63 : 12,284.73 = 2,994.50 : x
  2. Step 2: Convert to fraction form
    8,188.63/12,284.73 = 2,994.50/x
  3. Step 3: Cross multiply
    8,188.63x = 12,284.73 × 2,994.50
  4. Step 4: Simplify right side
    8,188.63x = 36,786,654.70
  5. Step 5: Solve for x
    x = 36,786,654.70/8,188.63
  6. Step 6: Final answer
    x = 4,492.41

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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.