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Finding the Fourth Proportional to 71,663.63, 107,495.69 and 21,744.14

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Solution

The fourth proportional to 71,663.63, 107,495.69 and 21,744.14 is: 32,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663.63 : 107,495.69 = 21,744.14 : x
  2. Step 2: Convert to fraction form
    71,663.63/107,495.69 = 21,744.14/x
  3. Step 3: Cross multiply
    71,663.63x = 107,495.69 × 21,744.14
  4. Step 4: Simplify right side
    71,663.63x = 2,337,400,686.56
  5. Step 5: Solve for x
    x = 2,337,400,686.56/71,663.63
  6. Step 6: Final answer
    x = 32,616.28

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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.