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Finding the Fourth Proportional to 12,704.40, 17,532.08 and 6,961.83

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Solution

The fourth proportional to 12,704.40, 17,532.08 and 6,961.83 is: 9,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.40 : 17,532.08 = 6,961.83 : x
  2. Step 2: Convert to fraction form
    12,704.40/17,532.08 = 6,961.83/x
  3. Step 3: Cross multiply
    12,704.40x = 17,532.08 × 6,961.83
  4. Step 4: Simplify right side
    12,704.40x = 122,055,360.51
  5. Step 5: Solve for x
    x = 122,055,360.51/12,704.40
  6. Step 6: Final answer
    x = 9,607.33

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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.