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Finding the Fourth Proportional to 26,509.42, 39,763.09 and 8,979.25

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Solution

The fourth proportional to 26,509.42, 39,763.09 and 8,979.25 is: 13,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,509.42 : 39,763.09 = 8,979.25 : x
  2. Step 2: Convert to fraction form
    26,509.42/39,763.09 = 8,979.25/x
  3. Step 3: Cross multiply
    26,509.42x = 39,763.09 × 8,979.25
  4. Step 4: Simplify right side
    26,509.42x = 357,042,504.62
  5. Step 5: Solve for x
    x = 357,042,504.62/26,509.42
  6. Step 6: Final answer
    x = 13,468.52

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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.