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Finding the Fourth Proportional to 19,033.25, 28,558.04 and 7,942.10

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Solution

The fourth proportional to 19,033.25, 28,558.04 and 7,942.10 is: 11,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,033.25 : 28,558.04 = 7,942.10 : x
  2. Step 2: Convert to fraction form
    19,033.25/28,558.04 = 7,942.10/x
  3. Step 3: Cross multiply
    19,033.25x = 28,558.04 × 7,942.10
  4. Step 4: Simplify right side
    19,033.25x = 226,810,626.98
  5. Step 5: Solve for x
    x = 226,810,626.98/19,033.25
  6. Step 6: Final answer
    x = 11,916.55

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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.