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Finding the Fourth Proportional to 7,274.81, 10,913.54 and 4,811.67

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Solution

The fourth proportional to 7,274.81, 10,913.54 and 4,811.67 is: 7,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.81 : 10,913.54 = 4,811.67 : x
  2. Step 2: Convert to fraction form
    7,274.81/10,913.54 = 4,811.67/x
  3. Step 3: Cross multiply
    7,274.81x = 10,913.54 × 4,811.67
  4. Step 4: Simplify right side
    7,274.81x = 52,512,328.95
  5. Step 5: Solve for x
    x = 52,512,328.95/7,274.81
  6. Step 6: Final answer
    x = 7,218.38

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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.