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Finding the Fourth Proportional to 7,892.01, 11,845.29 and 3,999.15

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Solution

The fourth proportional to 7,892.01, 11,845.29 and 3,999.15 is: 6,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.01 : 11,845.29 = 3,999.15 : x
  2. Step 2: Convert to fraction form
    7,892.01/11,845.29 = 3,999.15/x
  3. Step 3: Cross multiply
    7,892.01x = 11,845.29 × 3,999.15
  4. Step 4: Simplify right side
    7,892.01x = 47,371,091.50
  5. Step 5: Solve for x
    x = 47,371,091.50/7,892.01
  6. Step 6: Final answer
    x = 6,002.41

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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.