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Finding the Fourth Proportional to 29,165.70, 43,722.90 and 17,290.20

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Solution

The fourth proportional to 29,165.70, 43,722.90 and 17,290.20 is: 25,920.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,165.70 : 43,722.90 = 17,290.20 : x
  2. Step 2: Convert to fraction form
    29,165.70/43,722.90 = 17,290.20/x
  3. Step 3: Cross multiply
    29,165.70x = 43,722.90 × 17,290.20
  4. Step 4: Simplify right side
    29,165.70x = 755,977,685.58
  5. Step 5: Solve for x
    x = 755,977,685.58/29,165.70
  6. Step 6: Final answer
    x = 25,920.09

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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.