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Finding the Fourth Proportional to 19,483.39, 29,238.03 and 7,171.39

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Solution

The fourth proportional to 19,483.39, 29,238.03 and 7,171.39 is: 10,761.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.39 : 29,238.03 = 7,171.39 : x
  2. Step 2: Convert to fraction form
    19,483.39/29,238.03 = 7,171.39/x
  3. Step 3: Cross multiply
    19,483.39x = 29,238.03 × 7,171.39
  4. Step 4: Simplify right side
    19,483.39x = 209,677,315.96
  5. Step 5: Solve for x
    x = 209,677,315.96/19,483.39
  6. Step 6: Final answer
    x = 10,761.85

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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.