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Finding the Fourth Proportional to 18,103.79, 24,983.24 and 11,030.21

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Solution

The fourth proportional to 18,103.79, 24,983.24 and 11,030.21 is: 15,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.79 : 24,983.24 = 11,030.21 : x
  2. Step 2: Convert to fraction form
    18,103.79/24,983.24 = 11,030.21/x
  3. Step 3: Cross multiply
    18,103.79x = 24,983.24 × 11,030.21
  4. Step 4: Simplify right side
    18,103.79x = 275,570,203.61
  5. Step 5: Solve for x
    x = 275,570,203.61/18,103.79
  6. Step 6: Final answer
    x = 15,221.69

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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.