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Finding the Fourth Proportional to 12,775.63, 19,163.21 and 5,750.67

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Solution

The fourth proportional to 12,775.63, 19,163.21 and 5,750.67 is: 8,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.63 : 19,163.21 = 5,750.67 : x
  2. Step 2: Convert to fraction form
    12,775.63/19,163.21 = 5,750.67/x
  3. Step 3: Cross multiply
    12,775.63x = 19,163.21 × 5,750.67
  4. Step 4: Simplify right side
    12,775.63x = 110,201,268.10
  5. Step 5: Solve for x
    x = 110,201,268.10/12,775.63
  6. Step 6: Final answer
    x = 8,625.90

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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.