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Finding the Fourth Proportional to 26,853.60, 40,280.40 and 12,069.60

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Solution

The fourth proportional to 26,853.60, 40,280.40 and 12,069.60 is: 18,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,853.60 : 40,280.40 = 12,069.60 : x
  2. Step 2: Convert to fraction form
    26,853.60/40,280.40 = 12,069.60/x
  3. Step 3: Cross multiply
    26,853.60x = 40,280.40 × 12,069.60
  4. Step 4: Simplify right side
    26,853.60x = 486,168,315.84
  5. Step 5: Solve for x
    x = 486,168,315.84/26,853.60
  6. Step 6: Final answer
    x = 18,104.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.