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Finding the Fourth Proportional to 71,267.56, 106,918.62 and 21,347.56

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Solution

The fourth proportional to 71,267.56, 106,918.62 and 21,347.56 is: 32,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,267.56 : 106,918.62 = 21,347.56 : x
  2. Step 2: Convert to fraction form
    71,267.56/106,918.62 = 21,347.56/x
  3. Step 3: Cross multiply
    71,267.56x = 106,918.62 × 21,347.56
  4. Step 4: Simplify right side
    71,267.56x = 2,282,451,655.57
  5. Step 5: Solve for x
    x = 2,282,451,655.57/71,267.56
  6. Step 6: Final answer
    x = 32,026.52

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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.