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Finding the Fourth Proportional to 12,525.57, 18,782.28 and 4,734.99

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Solution

The fourth proportional to 12,525.57, 18,782.28 and 4,734.99 is: 7,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.57 : 18,782.28 = 4,734.99 : x
  2. Step 2: Convert to fraction form
    12,525.57/18,782.28 = 4,734.99/x
  3. Step 3: Cross multiply
    12,525.57x = 18,782.28 × 4,734.99
  4. Step 4: Simplify right side
    12,525.57x = 88,933,907.98
  5. Step 5: Solve for x
    x = 88,933,907.98/12,525.57
  6. Step 6: Final answer
    x = 7,100.19

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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.