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Finding the Fourth Proportional to 43,363.80, 65,045.70 and 26,742.60

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Solution

The fourth proportional to 43,363.80, 65,045.70 and 26,742.60 is: 40,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,363.80 : 65,045.70 = 26,742.60 : x
  2. Step 2: Convert to fraction form
    43,363.80/65,045.70 = 26,742.60/x
  3. Step 3: Cross multiply
    43,363.80x = 65,045.70 × 26,742.60
  4. Step 4: Simplify right side
    43,363.80x = 1,739,491,136.82
  5. Step 5: Solve for x
    x = 1,739,491,136.82/43,363.80
  6. Step 6: Final answer
    x = 40,113.90

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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.