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Finding the Fourth Proportional to 7,968.90, 11,951.75 and 7,573.72

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Solution

The fourth proportional to 7,968.90, 11,951.75 and 7,573.72 is: 11,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.90 : 11,951.75 = 7,573.72 : x
  2. Step 2: Convert to fraction form
    7,968.90/11,951.75 = 7,573.72/x
  3. Step 3: Cross multiply
    7,968.90x = 11,951.75 × 7,573.72
  4. Step 4: Simplify right side
    7,968.90x = 90,519,208.01
  5. Step 5: Solve for x
    x = 90,519,208.01/7,968.90
  6. Step 6: Final answer
    x = 11,359.06

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1.5x scale

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.