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Finding the Fourth Proportional to 11,651.45, 17,477.30 and 2,886.44

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Solution

The fourth proportional to 11,651.45, 17,477.30 and 2,886.44 is: 4,329.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.45 : 17,477.30 = 2,886.44 : x
  2. Step 2: Convert to fraction form
    11,651.45/17,477.30 = 2,886.44/x
  3. Step 3: Cross multiply
    11,651.45x = 17,477.30 × 2,886.44
  4. Step 4: Simplify right side
    11,651.45x = 50,447,075.99
  5. Step 5: Solve for x
    x = 50,447,075.99/11,651.45
  6. Step 6: Final answer
    x = 4,329.68

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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.