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Finding the Fourth Proportional to 7,953.64, 11,927.13 and 3,020.56

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Solution

The fourth proportional to 7,953.64, 11,927.13 and 3,020.56 is: 4,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.64 : 11,927.13 = 3,020.56 : x
  2. Step 2: Convert to fraction form
    7,953.64/11,927.13 = 3,020.56/x
  3. Step 3: Cross multiply
    7,953.64x = 11,927.13 × 3,020.56
  4. Step 4: Simplify right side
    7,953.64x = 36,026,611.79
  5. Step 5: Solve for x
    x = 36,026,611.79/7,953.64
  6. Step 6: Final answer
    x = 4,529.58

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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.