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Finding the Fourth Proportional to 3,572.28, 5,391.81 and 3,572.28

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Solution

The fourth proportional to 3,572.28, 5,391.81 and 3,572.28 is: 5,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.28 : 5,391.81 = 3,572.28 : x
  2. Step 2: Convert to fraction form
    3,572.28/5,391.81 = 3,572.28/x
  3. Step 3: Cross multiply
    3,572.28x = 5,391.81 × 3,572.28
  4. Step 4: Simplify right side
    3,572.28x = 19,261,055.03
  5. Step 5: Solve for x
    x = 19,261,055.03/3,572.28
  6. Step 6: Final answer
    x = 5,391.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.