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Finding the Fourth Proportional to 29,609.61, 40,861.80 and 16,181.43

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Solution

The fourth proportional to 29,609.61, 40,861.80 and 16,181.43 is: 22,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,609.61 : 40,861.80 = 16,181.43 : x
  2. Step 2: Convert to fraction form
    29,609.61/40,861.80 = 16,181.43/x
  3. Step 3: Cross multiply
    29,609.61x = 40,861.80 × 16,181.43
  4. Step 4: Simplify right side
    29,609.61x = 661,202,356.37
  5. Step 5: Solve for x
    x = 661,202,356.37/29,609.61
  6. Step 6: Final answer
    x = 22,330.67

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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.