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Finding the Fourth Proportional to 6,793.90, 10,189.76 and 1,862.40

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Solution

The fourth proportional to 6,793.90, 10,189.76 and 1,862.40 is: 2,793.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,793.90 : 10,189.76 = 1,862.40 : x
  2. Step 2: Convert to fraction form
    6,793.90/10,189.76 = 1,862.40/x
  3. Step 3: Cross multiply
    6,793.90x = 10,189.76 × 1,862.40
  4. Step 4: Simplify right side
    6,793.90x = 18,977,353.42
  5. Step 5: Solve for x
    x = 18,977,353.42/6,793.90
  6. Step 6: Final answer
    x = 2,793.29

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1.5x scale

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.