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Finding the Fourth Proportional to 5,584.84, 8,378.42 and 1,636.12

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Solution

The fourth proportional to 5,584.84, 8,378.42 and 1,636.12 is: 2,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,584.84 : 8,378.42 = 1,636.12 : x
  2. Step 2: Convert to fraction form
    5,584.84/8,378.42 = 1,636.12/x
  3. Step 3: Cross multiply
    5,584.84x = 8,378.42 × 1,636.12
  4. Step 4: Simplify right side
    5,584.84x = 13,708,100.53
  5. Step 5: Solve for x
    x = 13,708,100.53/5,584.84
  6. Step 6: Final answer
    x = 2,454.52

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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.