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Finding the Fourth Proportional to 5,321.76, 7,343.91 and 2,964.12

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Solution

The fourth proportional to 5,321.76, 7,343.91 and 2,964.12 is: 4,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.76 : 7,343.91 = 2,964.12 : x
  2. Step 2: Convert to fraction form
    5,321.76/7,343.91 = 2,964.12/x
  3. Step 3: Cross multiply
    5,321.76x = 7,343.91 × 2,964.12
  4. Step 4: Simplify right side
    5,321.76x = 21,768,230.51
  5. Step 5: Solve for x
    x = 21,768,230.51/5,321.76
  6. Step 6: Final answer
    x = 4,090.42

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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.