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Finding the Fourth Proportional to 12,659.16, 17,469.80 and 6,994.16

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Solution

The fourth proportional to 12,659.16, 17,469.80 and 6,994.16 is: 9,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.16 : 17,469.80 = 6,994.16 : x
  2. Step 2: Convert to fraction form
    12,659.16/17,469.80 = 6,994.16/x
  3. Step 3: Cross multiply
    12,659.16x = 17,469.80 × 6,994.16
  4. Step 4: Simplify right side
    12,659.16x = 122,186,576.37
  5. Step 5: Solve for x
    x = 122,186,576.37/12,659.16
  6. Step 6: Final answer
    x = 9,652.03

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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.