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Finding the Fourth Proportional to 7,887.01, 11,832.82 and 2,957.03

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Solution

The fourth proportional to 7,887.01, 11,832.82 and 2,957.03 is: 4,436.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.01 : 11,832.82 = 2,957.03 : x
  2. Step 2: Convert to fraction form
    7,887.01/11,832.82 = 2,957.03/x
  3. Step 3: Cross multiply
    7,887.01x = 11,832.82 × 2,957.03
  4. Step 4: Simplify right side
    7,887.01x = 34,990,027.30
  5. Step 5: Solve for x
    x = 34,990,027.30/7,887.01
  6. Step 6: Final answer
    x = 4,436.41

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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.