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Finding the Fourth Proportional to 7,674.82, 11,509.62 and 2,994.46

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Solution

The fourth proportional to 7,674.82, 11,509.62 and 2,994.46 is: 4,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.82 : 11,509.62 = 2,994.46 : x
  2. Step 2: Convert to fraction form
    7,674.82/11,509.62 = 2,994.46/x
  3. Step 3: Cross multiply
    7,674.82x = 11,509.62 × 2,994.46
  4. Step 4: Simplify right side
    7,674.82x = 34,465,096.71
  5. Step 5: Solve for x
    x = 34,465,096.71/7,674.82
  6. Step 6: Final answer
    x = 4,490.67

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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.