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Finding the Fourth Proportional to 7,700.44, 11,550.66 and 4,415.62

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Solution

The fourth proportional to 7,700.44, 11,550.66 and 4,415.62 is: 6,623.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.44 : 11,550.66 = 4,415.62 : x
  2. Step 2: Convert to fraction form
    7,700.44/11,550.66 = 4,415.62/x
  3. Step 3: Cross multiply
    7,700.44x = 11,550.66 × 4,415.62
  4. Step 4: Simplify right side
    7,700.44x = 51,003,325.31
  5. Step 5: Solve for x
    x = 51,003,325.31/7,700.44
  6. Step 6: Final answer
    x = 6,623.43

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Double scale
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Similar ratio
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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.