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Finding the Fourth Proportional to 8,858.94, 13,285.88 and 3,015.42

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Solution

The fourth proportional to 8,858.94, 13,285.88 and 3,015.42 is: 4,522.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.94 : 13,285.88 = 3,015.42 : x
  2. Step 2: Convert to fraction form
    8,858.94/13,285.88 = 3,015.42/x
  3. Step 3: Cross multiply
    8,858.94x = 13,285.88 × 3,015.42
  4. Step 4: Simplify right side
    8,858.94x = 40,062,508.27
  5. Step 5: Solve for x
    x = 40,062,508.27/8,858.94
  6. Step 6: Final answer
    x = 4,522.27

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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.