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Finding the Fourth Proportional to 7,961.83, 11,885.44 and 7,385.11

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Solution

The fourth proportional to 7,961.83, 11,885.44 and 7,385.11 is: 11,024.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.83 : 11,885.44 = 7,385.11 : x
  2. Step 2: Convert to fraction form
    7,961.83/11,885.44 = 7,385.11/x
  3. Step 3: Cross multiply
    7,961.83x = 11,885.44 × 7,385.11
  4. Step 4: Simplify right side
    7,961.83x = 87,775,281.80
  5. Step 5: Solve for x
    x = 87,775,281.80/7,961.83
  6. Step 6: Final answer
    x = 11,024.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.