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Finding the Fourth Proportional to 40,407.99, 55,736.33 and 25,274.39

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Solution

The fourth proportional to 40,407.99, 55,736.33 and 25,274.39 is: 34,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,407.99 : 55,736.33 = 25,274.39 : x
  2. Step 2: Convert to fraction form
    40,407.99/55,736.33 = 25,274.39/x
  3. Step 3: Cross multiply
    40,407.99x = 55,736.33 × 25,274.39
  4. Step 4: Simplify right side
    40,407.99x = 1,408,701,336.54
  5. Step 5: Solve for x
    x = 1,408,701,336.54/40,407.99
  6. Step 6: Final answer
    x = 34,861.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.