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Finding the Fourth Proportional to 7,333.75, 11,000.67 and 2,139.67

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Solution

The fourth proportional to 7,333.75, 11,000.67 and 2,139.67 is: 3,209.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,333.75 : 11,000.67 = 2,139.67 : x
  2. Step 2: Convert to fraction form
    7,333.75/11,000.67 = 2,139.67/x
  3. Step 3: Cross multiply
    7,333.75x = 11,000.67 × 2,139.67
  4. Step 4: Simplify right side
    7,333.75x = 23,537,803.58
  5. Step 5: Solve for x
    x = 23,537,803.58/7,333.75
  6. Step 6: Final answer
    x = 3,209.52

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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.