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Finding the Fourth Proportional to 18,000.36, 24,850.80 and 12,051.72

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Solution

The fourth proportional to 18,000.36, 24,850.80 and 12,051.72 is: 16,638.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.36 : 24,850.80 = 12,051.72 : x
  2. Step 2: Convert to fraction form
    18,000.36/24,850.80 = 12,051.72/x
  3. Step 3: Cross multiply
    18,000.36x = 24,850.80 × 12,051.72
  4. Step 4: Simplify right side
    18,000.36x = 299,494,883.38
  5. Step 5: Solve for x
    x = 299,494,883.38/18,000.36
  6. Step 6: Final answer
    x = 16,638.27

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Half scale
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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.