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Finding the Fourth Proportional to 70,953.57, 106,427.25 and 17,644.43

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Solution

The fourth proportional to 70,953.57, 106,427.25 and 17,644.43 is: 26,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,953.57 : 106,427.25 = 17,644.43 : x
  2. Step 2: Convert to fraction form
    70,953.57/106,427.25 = 17,644.43/x
  3. Step 3: Cross multiply
    70,953.57x = 106,427.25 × 17,644.43
  4. Step 4: Simplify right side
    70,953.57x = 1,877,848,428.79
  5. Step 5: Solve for x
    x = 1,877,848,428.79/70,953.57
  6. Step 6: Final answer
    x = 26,465.88

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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.