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Finding the Fourth Proportional to 14,791.14, 20,410.95 and 8,075.43

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Solution

The fourth proportional to 14,791.14, 20,410.95 and 8,075.43 is: 11,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.14 : 20,410.95 = 8,075.43 : x
  2. Step 2: Convert to fraction form
    14,791.14/20,410.95 = 8,075.43/x
  3. Step 3: Cross multiply
    14,791.14x = 20,410.95 × 8,075.43
  4. Step 4: Simplify right side
    14,791.14x = 164,827,228.24
  5. Step 5: Solve for x
    x = 164,827,228.24/14,791.14
  6. Step 6: Final answer
    x = 11,143.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.