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Finding the Fourth Proportional to 26,881.20, 40,336.20 and 11,300.40

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Solution

The fourth proportional to 26,881.20, 40,336.20 and 11,300.40 is: 16,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.20 : 40,336.20 = 11,300.40 : x
  2. Step 2: Convert to fraction form
    26,881.20/40,336.20 = 11,300.40/x
  3. Step 3: Cross multiply
    26,881.20x = 40,336.20 × 11,300.40
  4. Step 4: Simplify right side
    26,881.20x = 455,815,194.48
  5. Step 5: Solve for x
    x = 455,815,194.48/26,881.20
  6. Step 6: Final answer
    x = 16,956.65

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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.