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Finding the Fourth Proportional to 18,105.84, 24,986.04 and 11,032.28

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Solution

The fourth proportional to 18,105.84, 24,986.04 and 11,032.28 is: 15,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.84 : 24,986.04 = 11,032.28 : x
  2. Step 2: Convert to fraction form
    18,105.84/24,986.04 = 11,032.28/x
  3. Step 3: Cross multiply
    18,105.84x = 24,986.04 × 11,032.28
  4. Step 4: Simplify right side
    18,105.84x = 275,652,989.37
  5. Step 5: Solve for x
    x = 275,652,989.37/18,105.84
  6. Step 6: Final answer
    x = 15,224.53

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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.