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Finding the Fourth Proportional to 43,448.94, 65,132.79 and 15,353.28

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Solution

The fourth proportional to 43,448.94, 65,132.79 and 15,353.28 is: 23,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,448.94 : 65,132.79 = 15,353.28 : x
  2. Step 2: Convert to fraction form
    43,448.94/65,132.79 = 15,353.28/x
  3. Step 3: Cross multiply
    43,448.94x = 65,132.79 × 15,353.28
  4. Step 4: Simplify right side
    43,448.94x = 1,000,001,962.05
  5. Step 5: Solve for x
    x = 1,000,001,962.05/43,448.94
  6. Step 6: Final answer
    x = 23,015.57

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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.