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Finding the Fourth Proportional to 3,943.16, 5,914.61 and 1,603.13

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Solution

The fourth proportional to 3,943.16, 5,914.61 and 1,603.13 is: 2,404.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.16 : 5,914.61 = 1,603.13 : x
  2. Step 2: Convert to fraction form
    3,943.16/5,914.61 = 1,603.13/x
  3. Step 3: Cross multiply
    3,943.16x = 5,914.61 × 1,603.13
  4. Step 4: Simplify right side
    3,943.16x = 9,481,851.14
  5. Step 5: Solve for x
    x = 9,481,851.14/3,943.16
  6. Step 6: Final answer
    x = 2,404.64

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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.