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Finding the Fourth Proportional to 12,367.06, 17,066.93 and 6,778.06

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Solution

The fourth proportional to 12,367.06, 17,066.93 and 6,778.06 is: 9,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.06 : 17,066.93 = 6,778.06 : x
  2. Step 2: Convert to fraction form
    12,367.06/17,066.93 = 6,778.06/x
  3. Step 3: Cross multiply
    12,367.06x = 17,066.93 × 6,778.06
  4. Step 4: Simplify right side
    12,367.06x = 115,680,675.56
  5. Step 5: Solve for x
    x = 115,680,675.56/12,367.06
  6. Step 6: Final answer
    x = 9,353.94

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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.