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Finding the Fourth Proportional to 7,416.69, 11,132.85 and 7,249.33

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Solution

The fourth proportional to 7,416.69, 11,132.85 and 7,249.33 is: 10,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416.69 : 11,132.85 = 7,249.33 : x
  2. Step 2: Convert to fraction form
    7,416.69/11,132.85 = 7,249.33/x
  3. Step 3: Cross multiply
    7,416.69x = 11,132.85 × 7,249.33
  4. Step 4: Simplify right side
    7,416.69x = 80,705,690.22
  5. Step 5: Solve for x
    x = 80,705,690.22/7,416.69
  6. Step 6: Final answer
    x = 10,881.64

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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.