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Finding the Fourth Proportional to 12,609.66, 17,401.68 and 6,944.70

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Solution

The fourth proportional to 12,609.66, 17,401.68 and 6,944.70 is: 9,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.66 : 17,401.68 = 6,944.70 : x
  2. Step 2: Convert to fraction form
    12,609.66/17,401.68 = 6,944.70/x
  3. Step 3: Cross multiply
    12,609.66x = 17,401.68 × 6,944.70
  4. Step 4: Simplify right side
    12,609.66x = 120,849,447.10
  5. Step 5: Solve for x
    x = 120,849,447.10/12,609.66
  6. Step 6: Final answer
    x = 9,583.88

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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.