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Finding the Fourth Proportional to 66,847.29, 100,271.16 and 16,927.36

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Solution

The fourth proportional to 66,847.29, 100,271.16 and 16,927.36 is: 25,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,847.29 : 100,271.16 = 16,927.36 : x
  2. Step 2: Convert to fraction form
    66,847.29/100,271.16 = 16,927.36/x
  3. Step 3: Cross multiply
    66,847.29x = 100,271.16 × 16,927.36
  4. Step 4: Simplify right side
    66,847.29x = 1,697,326,022.94
  5. Step 5: Solve for x
    x = 1,697,326,022.94/66,847.29
  6. Step 6: Final answer
    x = 25,391.10

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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.