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Finding the Fourth Proportional to 7,230.99, 10,849.18 and 2,851.50

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Solution

The fourth proportional to 7,230.99, 10,849.18 and 2,851.50 is: 4,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.99 : 10,849.18 = 2,851.50 : x
  2. Step 2: Convert to fraction form
    7,230.99/10,849.18 = 2,851.50/x
  3. Step 3: Cross multiply
    7,230.99x = 10,849.18 × 2,851.50
  4. Step 4: Simplify right side
    7,230.99x = 30,936,436.77
  5. Step 5: Solve for x
    x = 30,936,436.77/7,230.99
  6. Step 6: Final answer
    x = 4,278.31

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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.