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Finding the Fourth Proportional to 3,904.51, 5,389.17 and 3,274.03

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Solution

The fourth proportional to 3,904.51, 5,389.17 and 3,274.03 is: 4,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.51 : 5,389.17 = 3,274.03 : x
  2. Step 2: Convert to fraction form
    3,904.51/5,389.17 = 3,274.03/x
  3. Step 3: Cross multiply
    3,904.51x = 5,389.17 × 3,274.03
  4. Step 4: Simplify right side
    3,904.51x = 17,644,304.26
  5. Step 5: Solve for x
    x = 17,644,304.26/3,904.51
  6. Step 6: Final answer
    x = 4,518.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.