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Finding the Fourth Proportional to 71,663.68, 107,495.75 and 21,744.19

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Solution

The fourth proportional to 71,663.68, 107,495.75 and 21,744.19 is: 32,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663.68 : 107,495.75 = 21,744.19 : x
  2. Step 2: Convert to fraction form
    71,663.68/107,495.75 = 21,744.19/x
  3. Step 3: Cross multiply
    71,663.68x = 107,495.75 × 21,744.19
  4. Step 4: Simplify right side
    71,663.68x = 2,337,407,634.73
  5. Step 5: Solve for x
    x = 2,337,407,634.73/71,663.68
  6. Step 6: Final answer
    x = 32,616.35

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1.5x scale

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.