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Finding the Fourth Proportional to 18,744, 25,866.99 and 10,360.50

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Solution

The fourth proportional to 18,744, 25,866.99 and 10,360.50 is: 14,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744 : 25,866.99 = 10,360.50 : x
  2. Step 2: Convert to fraction form
    18,744/25,866.99 = 10,360.50/x
  3. Step 3: Cross multiply
    18,744x = 25,866.99 × 10,360.50
  4. Step 4: Simplify right side
    18,744x = 267,994,949.90
  5. Step 5: Solve for x
    x = 267,994,949.90/18,744
  6. Step 6: Final answer
    x = 14,297.64

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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.