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Finding the Fourth Proportional to 7,418.03, 11,128.41 and 2,353.50

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Solution

The fourth proportional to 7,418.03, 11,128.41 and 2,353.50 is: 3,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.03 : 11,128.41 = 2,353.50 : x
  2. Step 2: Convert to fraction form
    7,418.03/11,128.41 = 2,353.50/x
  3. Step 3: Cross multiply
    7,418.03x = 11,128.41 × 2,353.50
  4. Step 4: Simplify right side
    7,418.03x = 26,190,712.94
  5. Step 5: Solve for x
    x = 26,190,712.94/7,418.03
  6. Step 6: Final answer
    x = 3,530.69

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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.