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Finding the Fourth Proportional to 7,956.63, 10,991.36 and 7,536.26

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Solution

The fourth proportional to 7,956.63, 10,991.36 and 7,536.26 is: 10,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.63 : 10,991.36 = 7,536.26 : x
  2. Step 2: Convert to fraction form
    7,956.63/10,991.36 = 7,536.26/x
  3. Step 3: Cross multiply
    7,956.63x = 10,991.36 × 7,536.26
  4. Step 4: Simplify right side
    7,956.63x = 82,833,716.74
  5. Step 5: Solve for x
    x = 82,833,716.74/7,956.63
  6. Step 6: Final answer
    x = 10,410.65

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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.