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Finding the Fourth Proportional to 26,981.70, 40,466.97 and 7,255.56

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Solution

The fourth proportional to 26,981.70, 40,466.97 and 7,255.56 is: 10,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,981.70 : 40,466.97 = 7,255.56 : x
  2. Step 2: Convert to fraction form
    26,981.70/40,466.97 = 7,255.56/x
  3. Step 3: Cross multiply
    26,981.70x = 40,466.97 × 7,255.56
  4. Step 4: Simplify right side
    26,981.70x = 293,610,528.85
  5. Step 5: Solve for x
    x = 293,610,528.85/26,981.70
  6. Step 6: Final answer
    x = 10,881.84

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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.