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Finding the Fourth Proportional to 7,651.48, 11,480.28 and 3,493.45

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Solution

The fourth proportional to 7,651.48, 11,480.28 and 3,493.45 is: 5,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.48 : 11,480.28 = 3,493.45 : x
  2. Step 2: Convert to fraction form
    7,651.48/11,480.28 = 3,493.45/x
  3. Step 3: Cross multiply
    7,651.48x = 11,480.28 × 3,493.45
  4. Step 4: Simplify right side
    7,651.48x = 40,105,784.17
  5. Step 5: Solve for x
    x = 40,105,784.17/7,651.48
  6. Step 6: Final answer
    x = 5,241.57

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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.