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Finding the Fourth Proportional to 12,271.60, 18,410.10 and 5,696.20

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Solution

The fourth proportional to 12,271.60, 18,410.10 and 5,696.20 is: 8,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.60 : 18,410.10 = 5,696.20 : x
  2. Step 2: Convert to fraction form
    12,271.60/18,410.10 = 5,696.20/x
  3. Step 3: Cross multiply
    12,271.60x = 18,410.10 × 5,696.20
  4. Step 4: Simplify right side
    12,271.60x = 104,867,611.62
  5. Step 5: Solve for x
    x = 104,867,611.62/12,271.60
  6. Step 6: Final answer
    x = 8,545.55

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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.