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Finding the Fourth Proportional to 17,235.38, 25,855.50 and 6,138.79

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Solution

The fourth proportional to 17,235.38, 25,855.50 and 6,138.79 is: 9,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,235.38 : 25,855.50 = 6,138.79 : x
  2. Step 2: Convert to fraction form
    17,235.38/25,855.50 = 6,138.79/x
  3. Step 3: Cross multiply
    17,235.38x = 25,855.50 × 6,138.79
  4. Step 4: Simplify right side
    17,235.38x = 158,721,420.21
  5. Step 5: Solve for x
    x = 158,721,420.21/17,235.38
  6. Step 6: Final answer
    x = 9,209.05

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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.