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Finding the Fourth Proportional to 6,744.39, 9,303.79 and 4,505.55

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Solution

The fourth proportional to 6,744.39, 9,303.79 and 4,505.55 is: 6,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,744.39 : 9,303.79 = 4,505.55 : x
  2. Step 2: Convert to fraction form
    6,744.39/9,303.79 = 4,505.55/x
  3. Step 3: Cross multiply
    6,744.39x = 9,303.79 × 4,505.55
  4. Step 4: Simplify right side
    6,744.39x = 41,918,691.03
  5. Step 5: Solve for x
    x = 41,918,691.03/6,744.39
  6. Step 6: Final answer
    x = 6,215.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.