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Finding the Fourth Proportional to 2,416.05, 3,624.71 and 684.67

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Solution

The fourth proportional to 2,416.05, 3,624.71 and 684.67 is: 1,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.05 : 3,624.71 = 684.67 : x
  2. Step 2: Convert to fraction form
    2,416.05/3,624.71 = 684.67/x
  3. Step 3: Cross multiply
    2,416.05x = 3,624.71 × 684.67
  4. Step 4: Simplify right side
    2,416.05x = 2,481,730.20
  5. Step 5: Solve for x
    x = 2,481,730.20/2,416.05
  6. Step 6: Final answer
    x = 1,027.18

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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.