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Finding the Fourth Proportional to 44,489.40, 66,734.10 and 30,492.60

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Solution

The fourth proportional to 44,489.40, 66,734.10 and 30,492.60 is: 45,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,489.40 : 66,734.10 = 30,492.60 : x
  2. Step 2: Convert to fraction form
    44,489.40/66,734.10 = 30,492.60/x
  3. Step 3: Cross multiply
    44,489.40x = 66,734.10 × 30,492.60
  4. Step 4: Simplify right side
    44,489.40x = 2,034,896,217.66
  5. Step 5: Solve for x
    x = 2,034,896,217.66/44,489.40
  6. Step 6: Final answer
    x = 45,738.90

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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.