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Finding the Fourth Proportional to 6,992.88, 10,503.72 and 6,759.60

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Solution

The fourth proportional to 6,992.88, 10,503.72 and 6,759.60 is: 10,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.88 : 10,503.72 = 6,759.60 : x
  2. Step 2: Convert to fraction form
    6,992.88/10,503.72 = 6,759.60/x
  3. Step 3: Cross multiply
    6,992.88x = 10,503.72 × 6,759.60
  4. Step 4: Simplify right side
    6,992.88x = 71,000,945.71
  5. Step 5: Solve for x
    x = 71,000,945.71/6,992.88
  6. Step 6: Final answer
    x = 10,153.32

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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.