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Finding the Fourth Proportional to 43,422.64, 65,064.30 and 26,733.40

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Solution

The fourth proportional to 43,422.64, 65,064.30 and 26,733.40 is: 40,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,422.64 : 65,064.30 = 26,733.40 : x
  2. Step 2: Convert to fraction form
    43,422.64/65,064.30 = 26,733.40/x
  3. Step 3: Cross multiply
    43,422.64x = 65,064.30 × 26,733.40
  4. Step 4: Simplify right side
    43,422.64x = 1,739,389,957.62
  5. Step 5: Solve for x
    x = 1,739,389,957.62/43,422.64
  6. Step 6: Final answer
    x = 40,057.21

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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.