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Finding the Fourth Proportional to 7,255.80, 10,896.90 and 6,348.60

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Solution

The fourth proportional to 7,255.80, 10,896.90 and 6,348.60 is: 9,534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.80 : 10,896.90 = 6,348.60 : x
  2. Step 2: Convert to fraction form
    7,255.80/10,896.90 = 6,348.60/x
  3. Step 3: Cross multiply
    7,255.80x = 10,896.90 × 6,348.60
  4. Step 4: Simplify right side
    7,255.80x = 69,180,059.34
  5. Step 5: Solve for x
    x = 69,180,059.34/7,255.80
  6. Step 6: Final answer
    x = 9,534.45

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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.