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Finding the Fourth Proportional to 19,242.36, 28,863.54 and 5,391.36

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Solution

The fourth proportional to 19,242.36, 28,863.54 and 5,391.36 is: 8,087.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.36 : 28,863.54 = 5,391.36 : x
  2. Step 2: Convert to fraction form
    19,242.36/28,863.54 = 5,391.36/x
  3. Step 3: Cross multiply
    19,242.36x = 28,863.54 × 5,391.36
  4. Step 4: Simplify right side
    19,242.36x = 155,613,735.01
  5. Step 5: Solve for x
    x = 155,613,735.01/19,242.36
  6. Step 6: Final answer
    x = 8,087.04

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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.