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Finding the Fourth Proportional to 7,014.10, 9,721.26 and 6,882.88

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Solution

The fourth proportional to 7,014.10, 9,721.26 and 6,882.88 is: 9,539.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.10 : 9,721.26 = 6,882.88 : x
  2. Step 2: Convert to fraction form
    7,014.10/9,721.26 = 6,882.88/x
  3. Step 3: Cross multiply
    7,014.10x = 9,721.26 × 6,882.88
  4. Step 4: Simplify right side
    7,014.10x = 66,910,224.52
  5. Step 5: Solve for x
    x = 66,910,224.52/7,014.10
  6. Step 6: Final answer
    x = 9,539.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.