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Finding the Fourth Proportional to 18,900.41, 26,080.88 and 10,943.18

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Solution

The fourth proportional to 18,900.41, 26,080.88 and 10,943.18 is: 15,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.41 : 26,080.88 = 10,943.18 : x
  2. Step 2: Convert to fraction form
    18,900.41/26,080.88 = 10,943.18/x
  3. Step 3: Cross multiply
    18,900.41x = 26,080.88 × 10,943.18
  4. Step 4: Simplify right side
    18,900.41x = 285,407,579.28
  5. Step 5: Solve for x
    x = 285,407,579.28/18,900.41
  6. Step 6: Final answer
    x = 15,100.60

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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.