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Finding the Fourth Proportional to 8,992.51, 12,424.91 and 6,469.63

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Solution

The fourth proportional to 8,992.51, 12,424.91 and 6,469.63 is: 8,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.51 : 12,424.91 = 6,469.63 : x
  2. Step 2: Convert to fraction form
    8,992.51/12,424.91 = 6,469.63/x
  3. Step 3: Cross multiply
    8,992.51x = 12,424.91 × 6,469.63
  4. Step 4: Simplify right side
    8,992.51x = 80,384,507.07
  5. Step 5: Solve for x
    x = 80,384,507.07/8,992.51
  6. Step 6: Final answer
    x = 8,939.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.