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Finding the Fourth Proportional to 18,466.74, 27,700.38 and 4,615.74

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Solution

The fourth proportional to 18,466.74, 27,700.38 and 4,615.74 is: 6,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.74 : 27,700.38 = 4,615.74 : x
  2. Step 2: Convert to fraction form
    18,466.74/27,700.38 = 4,615.74/x
  3. Step 3: Cross multiply
    18,466.74x = 27,700.38 × 4,615.74
  4. Step 4: Simplify right side
    18,466.74x = 127,857,751.98
  5. Step 5: Solve for x
    x = 127,857,751.98/18,466.74
  6. Step 6: Final answer
    x = 6,923.68

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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.