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Finding the Fourth Proportional to 7,090.11, 10,635.17 and 3,189.96

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Solution

The fourth proportional to 7,090.11, 10,635.17 and 3,189.96 is: 4,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.11 : 10,635.17 = 3,189.96 : x
  2. Step 2: Convert to fraction form
    7,090.11/10,635.17 = 3,189.96/x
  3. Step 3: Cross multiply
    7,090.11x = 10,635.17 × 3,189.96
  4. Step 4: Simplify right side
    7,090.11x = 33,925,750.94
  5. Step 5: Solve for x
    x = 33,925,750.94/7,090.11
  6. Step 6: Final answer
    x = 4,784.94

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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.