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Finding the Fourth Proportional to 18,908.57, 26,096.99 and 10,955.63

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Solution

The fourth proportional to 18,908.57, 26,096.99 and 10,955.63 is: 15,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.57 : 26,096.99 = 10,955.63 : x
  2. Step 2: Convert to fraction form
    18,908.57/26,096.99 = 10,955.63/x
  3. Step 3: Cross multiply
    18,908.57x = 26,096.99 × 10,955.63
  4. Step 4: Simplify right side
    18,908.57x = 285,908,781.29
  5. Step 5: Solve for x
    x = 285,908,781.29/18,908.57
  6. Step 6: Final answer
    x = 15,120.60

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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.