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Finding the Fourth Proportional to 12,713.08, 17,550.65 and 9,874.09

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Solution

The fourth proportional to 12,713.08, 17,550.65 and 9,874.09 is: 13,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.08 : 17,550.65 = 9,874.09 : x
  2. Step 2: Convert to fraction form
    12,713.08/17,550.65 = 9,874.09/x
  3. Step 3: Cross multiply
    12,713.08x = 17,550.65 × 9,874.09
  4. Step 4: Simplify right side
    12,713.08x = 173,296,692.16
  5. Step 5: Solve for x
    x = 173,296,692.16/12,713.08
  6. Step 6: Final answer
    x = 13,631.37

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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.