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Finding the Fourth Proportional to 2,445.50, 3,667.95 and 984.67

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Solution

The fourth proportional to 2,445.50, 3,667.95 and 984.67 is: 1,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.50 : 3,667.95 = 984.67 : x
  2. Step 2: Convert to fraction form
    2,445.50/3,667.95 = 984.67/x
  3. Step 3: Cross multiply
    2,445.50x = 3,667.95 × 984.67
  4. Step 4: Simplify right side
    2,445.50x = 3,611,711.16
  5. Step 5: Solve for x
    x = 3,611,711.16/2,445.50
  6. Step 6: Final answer
    x = 1,476.88

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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.