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Finding the Fourth Proportional to 12,674.22, 17,493.08 and 8,425.64

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Solution

The fourth proportional to 12,674.22, 17,493.08 and 8,425.64 is: 11,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.22 : 17,493.08 = 8,425.64 : x
  2. Step 2: Convert to fraction form
    12,674.22/17,493.08 = 8,425.64/x
  3. Step 3: Cross multiply
    12,674.22x = 17,493.08 × 8,425.64
  4. Step 4: Simplify right side
    12,674.22x = 147,390,264.98
  5. Step 5: Solve for x
    x = 147,390,264.98/12,674.22
  6. Step 6: Final answer
    x = 11,629.14

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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.