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Finding the Fourth Proportional to 7,226.45, 9,972.42 and 4,241.77

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Solution

The fourth proportional to 7,226.45, 9,972.42 and 4,241.77 is: 5,853.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226.45 : 9,972.42 = 4,241.77 : x
  2. Step 2: Convert to fraction form
    7,226.45/9,972.42 = 4,241.77/x
  3. Step 3: Cross multiply
    7,226.45x = 9,972.42 × 4,241.77
  4. Step 4: Simplify right side
    7,226.45x = 42,300,671.15
  5. Step 5: Solve for x
    x = 42,300,671.15/7,226.45
  6. Step 6: Final answer
    x = 5,853.59

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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.