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Finding the Fourth Proportional to 43,755.40, 65,600.70 and 29,680.30

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Solution

The fourth proportional to 43,755.40, 65,600.70 and 29,680.30 is: 44,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,755.40 : 65,600.70 = 29,680.30 : x
  2. Step 2: Convert to fraction form
    43,755.40/65,600.70 = 29,680.30/x
  3. Step 3: Cross multiply
    43,755.40x = 65,600.70 × 29,680.30
  4. Step 4: Simplify right side
    43,755.40x = 1,947,048,456.21
  5. Step 5: Solve for x
    x = 1,947,048,456.21/43,755.40
  6. Step 6: Final answer
    x = 44,498.47

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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.