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Finding the Fourth Proportional to 4,928.76, 7,350.39 and 4,203

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Solution

The fourth proportional to 4,928.76, 7,350.39 and 4,203 is: 6,268.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.76 : 7,350.39 = 4,203 : x
  2. Step 2: Convert to fraction form
    4,928.76/7,350.39 = 4,203/x
  3. Step 3: Cross multiply
    4,928.76x = 7,350.39 × 4,203
  4. Step 4: Simplify right side
    4,928.76x = 30,893,689.17
  5. Step 5: Solve for x
    x = 30,893,689.17/4,928.76
  6. Step 6: Final answer
    x = 6,268.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.