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Finding the Fourth Proportional to 8,482.89, 12,724.34 and 5,811.84

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Solution

The fourth proportional to 8,482.89, 12,724.34 and 5,811.84 is: 8,717.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.89 : 12,724.34 = 5,811.84 : x
  2. Step 2: Convert to fraction form
    8,482.89/12,724.34 = 5,811.84/x
  3. Step 3: Cross multiply
    8,482.89x = 12,724.34 × 5,811.84
  4. Step 4: Simplify right side
    8,482.89x = 73,951,894.45
  5. Step 5: Solve for x
    x = 73,951,894.45/8,482.89
  6. Step 6: Final answer
    x = 8,717.77

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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.