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Finding the Fourth Proportional to 29,999.92, 45,027.11 and 15,971.66

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Solution

The fourth proportional to 29,999.92, 45,027.11 and 15,971.66 is: 23,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,999.92 : 45,027.11 = 15,971.66 : x
  2. Step 2: Convert to fraction form
    29,999.92/45,027.11 = 15,971.66/x
  3. Step 3: Cross multiply
    29,999.92x = 45,027.11 × 15,971.66
  4. Step 4: Simplify right side
    29,999.92x = 719,157,844.20
  5. Step 5: Solve for x
    x = 719,157,844.20/29,999.92
  6. Step 6: Final answer
    x = 23,971.99

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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.