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Finding the Fourth Proportional to 7,408.54, 10,224.03 and 4,051.28

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Solution

The fourth proportional to 7,408.54, 10,224.03 and 4,051.28 is: 5,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.54 : 10,224.03 = 4,051.28 : x
  2. Step 2: Convert to fraction form
    7,408.54/10,224.03 = 4,051.28/x
  3. Step 3: Cross multiply
    7,408.54x = 10,224.03 × 4,051.28
  4. Step 4: Simplify right side
    7,408.54x = 41,420,408.26
  5. Step 5: Solve for x
    x = 41,420,408.26/7,408.54
  6. Step 6: Final answer
    x = 5,590.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.