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Finding the Fourth Proportional to 7,956.21, 11,939.48 and 7,347.50

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Solution

The fourth proportional to 7,956.21, 11,939.48 and 7,347.50 is: 11,026.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.21 : 11,939.48 = 7,347.50 : x
  2. Step 2: Convert to fraction form
    7,956.21/11,939.48 = 7,347.50/x
  3. Step 3: Cross multiply
    7,956.21x = 11,939.48 × 7,347.50
  4. Step 4: Simplify right side
    7,956.21x = 87,725,329.30
  5. Step 5: Solve for x
    x = 87,725,329.30/7,956.21
  6. Step 6: Final answer
    x = 11,026.02

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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.