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Finding the Fourth Proportional to 2,793.10, 4,189.17 and 1,038.93

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Solution

The fourth proportional to 2,793.10, 4,189.17 and 1,038.93 is: 1,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.10 : 4,189.17 = 1,038.93 : x
  2. Step 2: Convert to fraction form
    2,793.10/4,189.17 = 1,038.93/x
  3. Step 3: Cross multiply
    2,793.10x = 4,189.17 × 1,038.93
  4. Step 4: Simplify right side
    2,793.10x = 4,352,254.39
  5. Step 5: Solve for x
    x = 4,352,254.39/2,793.10
  6. Step 6: Final answer
    x = 1,558.22

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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.