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Finding the Fourth Proportional to 18,768.49, 25,894.23 and 10,810.54

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Solution

The fourth proportional to 18,768.49, 25,894.23 and 10,810.54 is: 14,914.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.49 : 25,894.23 = 10,810.54 : x
  2. Step 2: Convert to fraction form
    18,768.49/25,894.23 = 10,810.54/x
  3. Step 3: Cross multiply
    18,768.49x = 25,894.23 × 10,810.54
  4. Step 4: Simplify right side
    18,768.49x = 279,930,609.18
  5. Step 5: Solve for x
    x = 279,930,609.18/18,768.49
  6. Step 6: Final answer
    x = 14,914.92

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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.