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Finding the Fourth Proportional to 18,018.29, 24,858.08 and 12,040.49

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Solution

The fourth proportional to 18,018.29, 24,858.08 and 12,040.49 is: 16,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.29 : 24,858.08 = 12,040.49 : x
  2. Step 2: Convert to fraction form
    18,018.29/24,858.08 = 12,040.49/x
  3. Step 3: Cross multiply
    18,018.29x = 24,858.08 × 12,040.49
  4. Step 4: Simplify right side
    18,018.29x = 299,303,279.17
  5. Step 5: Solve for x
    x = 299,303,279.17/18,018.29
  6. Step 6: Final answer
    x = 16,611.09

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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.