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Finding the Fourth Proportional to 7,961.60, 11,960.76 and 5,009.24

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Solution

The fourth proportional to 7,961.60, 11,960.76 and 5,009.24 is: 7,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.60 : 11,960.76 = 5,009.24 : x
  2. Step 2: Convert to fraction form
    7,961.60/11,960.76 = 5,009.24/x
  3. Step 3: Cross multiply
    7,961.60x = 11,960.76 × 5,009.24
  4. Step 4: Simplify right side
    7,961.60x = 59,914,317.42
  5. Step 5: Solve for x
    x = 59,914,317.42/7,961.60
  6. Step 6: Final answer
    x = 7,525.41

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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.