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Finding the Fourth Proportional to 3,093.68, 4,641.30 and 902.60

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Solution

The fourth proportional to 3,093.68, 4,641.30 and 902.60 is: 1,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.68 : 4,641.30 = 902.60 : x
  2. Step 2: Convert to fraction form
    3,093.68/4,641.30 = 902.60/x
  3. Step 3: Cross multiply
    3,093.68x = 4,641.30 × 902.60
  4. Step 4: Simplify right side
    3,093.68x = 4,189,237.38
  5. Step 5: Solve for x
    x = 4,189,237.38/3,093.68
  6. Step 6: Final answer
    x = 1,354.13

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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.