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Finding the Fourth Proportional to 70,553.70, 105,829.94 and 17,963.10

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Solution

The fourth proportional to 70,553.70, 105,829.94 and 17,963.10 is: 26,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,553.70 : 105,829.94 = 17,963.10 : x
  2. Step 2: Convert to fraction form
    70,553.70/105,829.94 = 17,963.10/x
  3. Step 3: Cross multiply
    70,553.70x = 105,829.94 × 17,963.10
  4. Step 4: Simplify right side
    70,553.70x = 1,901,033,840.12
  5. Step 5: Solve for x
    x = 1,901,033,840.12/70,553.70
  6. Step 6: Final answer
    x = 26,944.50

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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.