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Finding the Fourth Proportional to 18,102.44, 24,980.04 and 11,031.14

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Solution

The fourth proportional to 18,102.44, 24,980.04 and 11,031.14 is: 15,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.44 : 24,980.04 = 11,031.14 : x
  2. Step 2: Convert to fraction form
    18,102.44/24,980.04 = 11,031.14/x
  3. Step 3: Cross multiply
    18,102.44x = 24,980.04 × 11,031.14
  4. Step 4: Simplify right side
    18,102.44x = 275,558,318.45
  5. Step 5: Solve for x
    x = 275,558,318.45/18,102.44
  6. Step 6: Final answer
    x = 15,222.16

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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.