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Finding the Fourth Proportional to 29,647.23, 40,914.20 and 16,902.30

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Solution

The fourth proportional to 29,647.23, 40,914.20 and 16,902.30 is: 23,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,647.23 : 40,914.20 = 16,902.30 : x
  2. Step 2: Convert to fraction form
    29,647.23/40,914.20 = 16,902.30/x
  3. Step 3: Cross multiply
    29,647.23x = 40,914.20 × 16,902.30
  4. Step 4: Simplify right side
    29,647.23x = 691,543,998.15
  5. Step 5: Solve for x
    x = 691,543,998.15/29,647.23
  6. Step 6: Final answer
    x = 23,325.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.