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Finding the Fourth Proportional to 43,360.40, 65,008.20 and 23,661.20

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Solution

The fourth proportional to 43,360.40, 65,008.20 and 23,661.20 is: 35,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,360.40 : 65,008.20 = 23,661.20 : x
  2. Step 2: Convert to fraction form
    43,360.40/65,008.20 = 23,661.20/x
  3. Step 3: Cross multiply
    43,360.40x = 65,008.20 × 23,661.20
  4. Step 4: Simplify right side
    43,360.40x = 1,538,172,021.84
  5. Step 5: Solve for x
    x = 1,538,172,021.84/43,360.40
  6. Step 6: Final answer
    x = 35,474.12

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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.