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Finding the Fourth Proportional to 19,203.43, 28,785.36 and 7,353.97

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Solution

The fourth proportional to 19,203.43, 28,785.36 and 7,353.97 is: 11,023.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.43 : 28,785.36 = 7,353.97 : x
  2. Step 2: Convert to fraction form
    19,203.43/28,785.36 = 7,353.97/x
  3. Step 3: Cross multiply
    19,203.43x = 28,785.36 × 7,353.97
  4. Step 4: Simplify right side
    19,203.43x = 211,686,750.04
  5. Step 5: Solve for x
    x = 211,686,750.04/19,203.43
  6. Step 6: Final answer
    x = 11,023.38

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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.