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Finding the Fourth Proportional to 9,245.82, 13,868.79 and 3,699.63

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Solution

The fourth proportional to 9,245.82, 13,868.79 and 3,699.63 is: 5,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.82 : 13,868.79 = 3,699.63 : x
  2. Step 2: Convert to fraction form
    9,245.82/13,868.79 = 3,699.63/x
  3. Step 3: Cross multiply
    9,245.82x = 13,868.79 × 3,699.63
  4. Step 4: Simplify right side
    9,245.82x = 51,309,391.55
  5. Step 5: Solve for x
    x = 51,309,391.55/9,245.82
  6. Step 6: Final answer
    x = 5,549.47

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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.