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Finding the Fourth Proportional to 4,699.70, 7,049.55 and 3,606.20

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Solution

The fourth proportional to 4,699.70, 7,049.55 and 3,606.20 is: 5,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.70 : 7,049.55 = 3,606.20 : x
  2. Step 2: Convert to fraction form
    4,699.70/7,049.55 = 3,606.20/x
  3. Step 3: Cross multiply
    4,699.70x = 7,049.55 × 3,606.20
  4. Step 4: Simplify right side
    4,699.70x = 25,422,087.21
  5. Step 5: Solve for x
    x = 25,422,087.21/4,699.70
  6. Step 6: Final answer
    x = 5,409.30

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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.