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Finding the Fourth Proportional to 4,245.36, 5,866.20 and 3,320.88

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Solution

The fourth proportional to 4,245.36, 5,866.20 and 3,320.88 is: 4,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.36 : 5,866.20 = 3,320.88 : x
  2. Step 2: Convert to fraction form
    4,245.36/5,866.20 = 3,320.88/x
  3. Step 3: Cross multiply
    4,245.36x = 5,866.20 × 3,320.88
  4. Step 4: Simplify right side
    4,245.36x = 19,480,946.26
  5. Step 5: Solve for x
    x = 19,480,946.26/4,245.36
  6. Step 6: Final answer
    x = 4,588.76

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