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Finding the Fourth Proportional to 18,137.96, 25,030.49 and 10,071.73

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Solution

The fourth proportional to 18,137.96, 25,030.49 and 10,071.73 is: 13,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.96 : 25,030.49 = 10,071.73 : x
  2. Step 2: Convert to fraction form
    18,137.96/25,030.49 = 10,071.73/x
  3. Step 3: Cross multiply
    18,137.96x = 25,030.49 × 10,071.73
  4. Step 4: Simplify right side
    18,137.96x = 252,100,337.05
  5. Step 5: Solve for x
    x = 252,100,337.05/18,137.96
  6. Step 6: Final answer
    x = 13,899.05

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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.