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Finding the Fourth Proportional to 7,241.86, 10,855.84 and 2,308.78

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Solution

The fourth proportional to 7,241.86, 10,855.84 and 2,308.78 is: 3,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.86 : 10,855.84 = 2,308.78 : x
  2. Step 2: Convert to fraction form
    7,241.86/10,855.84 = 2,308.78/x
  3. Step 3: Cross multiply
    7,241.86x = 10,855.84 × 2,308.78
  4. Step 4: Simplify right side
    7,241.86x = 25,063,746.28
  5. Step 5: Solve for x
    x = 25,063,746.28/7,241.86
  6. Step 6: Final answer
    x = 3,460.95

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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.