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Finding the Fourth Proportional to 7,394.76, 11,092.24 and 4,128.64

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Solution

The fourth proportional to 7,394.76, 11,092.24 and 4,128.64 is: 6,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.76 : 11,092.24 = 4,128.64 : x
  2. Step 2: Convert to fraction form
    7,394.76/11,092.24 = 4,128.64/x
  3. Step 3: Cross multiply
    7,394.76x = 11,092.24 × 4,128.64
  4. Step 4: Simplify right side
    7,394.76x = 45,795,843.18
  5. Step 5: Solve for x
    x = 45,795,843.18/7,394.76
  6. Step 6: Final answer
    x = 6,193.01

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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.