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Finding the Fourth Proportional to 18,587.70, 27,864.44 and 8,051.10

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Solution

The fourth proportional to 18,587.70, 27,864.44 and 8,051.10 is: 12,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.70 : 27,864.44 = 8,051.10 : x
  2. Step 2: Convert to fraction form
    18,587.70/27,864.44 = 8,051.10/x
  3. Step 3: Cross multiply
    18,587.70x = 27,864.44 × 8,051.10
  4. Step 4: Simplify right side
    18,587.70x = 224,339,392.88
  5. Step 5: Solve for x
    x = 224,339,392.88/18,587.70
  6. Step 6: Final answer
    x = 12,069.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.