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Finding the Fourth Proportional to 18,755.58, 25,881.75 and 10,370.46

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Solution

The fourth proportional to 18,755.58, 25,881.75 and 10,370.46 is: 14,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.58 : 25,881.75 = 10,370.46 : x
  2. Step 2: Convert to fraction form
    18,755.58/25,881.75 = 10,370.46/x
  3. Step 3: Cross multiply
    18,755.58x = 25,881.75 × 10,370.46
  4. Step 4: Simplify right side
    18,755.58x = 268,405,653.11
  5. Step 5: Solve for x
    x = 268,405,653.11/18,755.58
  6. Step 6: Final answer
    x = 14,310.71

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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.