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Finding the Fourth Proportional to 5,938.80, 8,908.20 and 1,556.70

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Solution

The fourth proportional to 5,938.80, 8,908.20 and 1,556.70 is: 2,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.80 : 8,908.20 = 1,556.70 : x
  2. Step 2: Convert to fraction form
    5,938.80/8,908.20 = 1,556.70/x
  3. Step 3: Cross multiply
    5,938.80x = 8,908.20 × 1,556.70
  4. Step 4: Simplify right side
    5,938.80x = 13,867,394.94
  5. Step 5: Solve for x
    x = 13,867,394.94/5,938.80
  6. Step 6: Final answer
    x = 2,335.05

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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.