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Finding the Fourth Proportional to 17,291.70, 25,937.55 and 7,450.20

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Solution

The fourth proportional to 17,291.70, 25,937.55 and 7,450.20 is: 11,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,291.70 : 25,937.55 = 7,450.20 : x
  2. Step 2: Convert to fraction form
    17,291.70/25,937.55 = 7,450.20/x
  3. Step 3: Cross multiply
    17,291.70x = 25,937.55 × 7,450.20
  4. Step 4: Simplify right side
    17,291.70x = 193,239,935.01
  5. Step 5: Solve for x
    x = 193,239,935.01/17,291.70
  6. Step 6: Final answer
    x = 11,175.30

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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.