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Finding the Fourth Proportional to 12,950.63, 17,871.87 and 7,361.63

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Solution

The fourth proportional to 12,950.63, 17,871.87 and 7,361.63 is: 10,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950.63 : 17,871.87 = 7,361.63 : x
  2. Step 2: Convert to fraction form
    12,950.63/17,871.87 = 7,361.63/x
  3. Step 3: Cross multiply
    12,950.63x = 17,871.87 × 7,361.63
  4. Step 4: Simplify right side
    12,950.63x = 131,566,004.99
  5. Step 5: Solve for x
    x = 131,566,004.99/12,950.63
  6. Step 6: Final answer
    x = 10,159.05

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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.