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Finding the Fourth Proportional to 7,485.94, 11,230.10 and 2,488.49

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Solution

The fourth proportional to 7,485.94, 11,230.10 and 2,488.49 is: 3,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.94 : 11,230.10 = 2,488.49 : x
  2. Step 2: Convert to fraction form
    7,485.94/11,230.10 = 2,488.49/x
  3. Step 3: Cross multiply
    7,485.94x = 11,230.10 × 2,488.49
  4. Step 4: Simplify right side
    7,485.94x = 27,945,991.55
  5. Step 5: Solve for x
    x = 27,945,991.55/7,485.94
  6. Step 6: Final answer
    x = 3,733.13

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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.