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Finding the Fourth Proportional to 18,103.89, 24,986.79 and 10,551.84

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Solution

The fourth proportional to 18,103.89, 24,986.79 and 10,551.84 is: 14,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.89 : 24,986.79 = 10,551.84 : x
  2. Step 2: Convert to fraction form
    18,103.89/24,986.79 = 10,551.84/x
  3. Step 3: Cross multiply
    18,103.89x = 24,986.79 × 10,551.84
  4. Step 4: Simplify right side
    18,103.89x = 263,656,610.19
  5. Step 5: Solve for x
    x = 263,656,610.19/18,103.89
  6. Step 6: Final answer
    x = 14,563.53

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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.