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Finding the Fourth Proportional to 3,323.48, 4,985.30 and 1,375.16

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Solution

The fourth proportional to 3,323.48, 4,985.30 and 1,375.16 is: 2,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,323.48 : 4,985.30 = 1,375.16 : x
  2. Step 2: Convert to fraction form
    3,323.48/4,985.30 = 1,375.16/x
  3. Step 3: Cross multiply
    3,323.48x = 4,985.30 × 1,375.16
  4. Step 4: Simplify right side
    3,323.48x = 6,855,585.15
  5. Step 5: Solve for x
    x = 6,855,585.15/3,323.48
  6. Step 6: Final answer
    x = 2,062.77

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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.