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Finding the Fourth Proportional to 8,544.60, 12,809.11 and 2,994.89

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Solution

The fourth proportional to 8,544.60, 12,809.11 and 2,994.89 is: 4,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.60 : 12,809.11 = 2,994.89 : x
  2. Step 2: Convert to fraction form
    8,544.60/12,809.11 = 2,994.89/x
  3. Step 3: Cross multiply
    8,544.60x = 12,809.11 × 2,994.89
  4. Step 4: Simplify right side
    8,544.60x = 38,361,875.45
  5. Step 5: Solve for x
    x = 38,361,875.45/8,544.60
  6. Step 6: Final answer
    x = 4,489.61

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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.