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Finding the Fourth Proportional to 18,806.76, 25,954.56 and 10,849.32

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Solution

The fourth proportional to 18,806.76, 25,954.56 and 10,849.32 is: 14,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.76 : 25,954.56 = 10,849.32 : x
  2. Step 2: Convert to fraction form
    18,806.76/25,954.56 = 10,849.32/x
  3. Step 3: Cross multiply
    18,806.76x = 25,954.56 × 10,849.32
  4. Step 4: Simplify right side
    18,806.76x = 281,589,326.90
  5. Step 5: Solve for x
    x = 281,589,326.90/18,806.76
  6. Step 6: Final answer
    x = 14,972.77

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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.