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Finding the Fourth Proportional to 5,869.12, 8,099.48 and 3,512.64

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Solution

The fourth proportional to 5,869.12, 8,099.48 and 3,512.64 is: 4,847.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.12 : 8,099.48 = 3,512.64 : x
  2. Step 2: Convert to fraction form
    5,869.12/8,099.48 = 3,512.64/x
  3. Step 3: Cross multiply
    5,869.12x = 8,099.48 × 3,512.64
  4. Step 4: Simplify right side
    5,869.12x = 28,450,557.43
  5. Step 5: Solve for x
    x = 28,450,557.43/5,869.12
  6. Step 6: Final answer
    x = 4,847.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.