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Finding the Fourth Proportional to 7,956.63, 11,918.54 and 4,659.73

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Solution

The fourth proportional to 7,956.63, 11,918.54 and 4,659.73 is: 6,979.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.63 : 11,918.54 = 4,659.73 : x
  2. Step 2: Convert to fraction form
    7,956.63/11,918.54 = 4,659.73/x
  3. Step 3: Cross multiply
    7,956.63x = 11,918.54 × 4,659.73
  4. Step 4: Simplify right side
    7,956.63x = 55,537,160.25
  5. Step 5: Solve for x
    x = 55,537,160.25/7,956.63
  6. Step 6: Final answer
    x = 6,979.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.