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Finding the Fourth Proportional to 3,598.62, 5,390.73 and 2,859.47

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Solution

The fourth proportional to 3,598.62, 5,390.73 and 2,859.47 is: 4,283.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,598.62 : 5,390.73 = 2,859.47 : x
  2. Step 2: Convert to fraction form
    3,598.62/5,390.73 = 2,859.47/x
  3. Step 3: Cross multiply
    3,598.62x = 5,390.73 × 2,859.47
  4. Step 4: Simplify right side
    3,598.62x = 15,414,603.76
  5. Step 5: Solve for x
    x = 15,414,603.76/3,598.62
  6. Step 6: Final answer
    x = 4,283.48

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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.