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Finding the Fourth Proportional to 18,800.26, 25,945.98 and 10,845.12

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Solution

The fourth proportional to 18,800.26, 25,945.98 and 10,845.12 is: 14,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.26 : 25,945.98 = 10,845.12 : x
  2. Step 2: Convert to fraction form
    18,800.26/25,945.98 = 10,845.12/x
  3. Step 3: Cross multiply
    18,800.26x = 25,945.98 × 10,845.12
  4. Step 4: Simplify right side
    18,800.26x = 281,387,266.62
  5. Step 5: Solve for x
    x = 281,387,266.62/18,800.26
  6. Step 6: Final answer
    x = 14,967.20

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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.