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Finding the Fourth Proportional to 43,647.90, 65,455.65 and 17,347.20

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Solution

The fourth proportional to 43,647.90, 65,455.65 and 17,347.20 is: 26,014.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,647.90 : 65,455.65 = 17,347.20 : x
  2. Step 2: Convert to fraction form
    43,647.90/65,455.65 = 17,347.20/x
  3. Step 3: Cross multiply
    43,647.90x = 65,455.65 × 17,347.20
  4. Step 4: Simplify right side
    43,647.90x = 1,135,472,251.68
  5. Step 5: Solve for x
    x = 1,135,472,251.68/43,647.90
  6. Step 6: Final answer
    x = 26,014.36

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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.