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Finding the Fourth Proportional to 3,596.78, 5,391.50 and 1,402.49

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Solution

The fourth proportional to 3,596.78, 5,391.50 and 1,402.49 is: 2,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.78 : 5,391.50 = 1,402.49 : x
  2. Step 2: Convert to fraction form
    3,596.78/5,391.50 = 1,402.49/x
  3. Step 3: Cross multiply
    3,596.78x = 5,391.50 × 1,402.49
  4. Step 4: Simplify right side
    3,596.78x = 7,561,490.87
  5. Step 5: Solve for x
    x = 7,561,490.87/3,596.78
  6. Step 6: Final answer
    x = 2,102.30

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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.