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Finding the Fourth Proportional to 17,912.52, 26,866.86 and 4,766.02

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Solution

The fourth proportional to 17,912.52, 26,866.86 and 4,766.02 is: 7,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.52 : 26,866.86 = 4,766.02 : x
  2. Step 2: Convert to fraction form
    17,912.52/26,866.86 = 4,766.02/x
  3. Step 3: Cross multiply
    17,912.52x = 26,866.86 × 4,766.02
  4. Step 4: Simplify right side
    17,912.52x = 128,047,992.10
  5. Step 5: Solve for x
    x = 128,047,992.10/17,912.52
  6. Step 6: Final answer
    x = 7,148.52

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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.