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Finding the Fourth Proportional to 18,891.30, 26,069.43 and 10,393.41

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Solution

The fourth proportional to 18,891.30, 26,069.43 and 10,393.41 is: 14,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.30 : 26,069.43 = 10,393.41 : x
  2. Step 2: Convert to fraction form
    18,891.30/26,069.43 = 10,393.41/x
  3. Step 3: Cross multiply
    18,891.30x = 26,069.43 × 10,393.41
  4. Step 4: Simplify right side
    18,891.30x = 270,950,274.46
  5. Step 5: Solve for x
    x = 270,950,274.46/18,891.30
  6. Step 6: Final answer
    x = 14,342.60

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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.