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Finding the Fourth Proportional to 3,598.98, 5,394.15 and 1,289.22

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Solution

The fourth proportional to 3,598.98, 5,394.15 and 1,289.22 is: 1,932.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,598.98 : 5,394.15 = 1,289.22 : x
  2. Step 2: Convert to fraction form
    3,598.98/5,394.15 = 1,289.22/x
  3. Step 3: Cross multiply
    3,598.98x = 5,394.15 × 1,289.22
  4. Step 4: Simplify right side
    3,598.98x = 6,954,246.06
  5. Step 5: Solve for x
    x = 6,954,246.06/3,598.98
  6. Step 6: Final answer
    x = 1,932.28

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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.