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Finding the Fourth Proportional to 19,347.20, 29,020.79 and 5,496.20

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Solution

The fourth proportional to 19,347.20, 29,020.79 and 5,496.20 is: 8,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.20 : 29,020.79 = 5,496.20 : x
  2. Step 2: Convert to fraction form
    19,347.20/29,020.79 = 5,496.20/x
  3. Step 3: Cross multiply
    19,347.20x = 29,020.79 × 5,496.20
  4. Step 4: Simplify right side
    19,347.20x = 159,503,893.41
  5. Step 5: Solve for x
    x = 159,503,893.41/19,347.20
  6. Step 6: Final answer
    x = 8,244.29

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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.