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Finding the Fourth Proportional to 17,356.51, 26,031.49 and 8,462.91

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Solution

The fourth proportional to 17,356.51, 26,031.49 and 8,462.91 is: 12,692.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,356.51 : 26,031.49 = 8,462.91 : x
  2. Step 2: Convert to fraction form
    17,356.51/26,031.49 = 8,462.91/x
  3. Step 3: Cross multiply
    17,356.51x = 26,031.49 × 8,462.91
  4. Step 4: Simplify right side
    17,356.51x = 220,302,157.04
  5. Step 5: Solve for x
    x = 220,302,157.04/17,356.51
  6. Step 6: Final answer
    x = 12,692.77

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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.