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Finding the Fourth Proportional to 70,965.93, 106,455.05 and 25,999.50

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Solution

The fourth proportional to 70,965.93, 106,455.05 and 25,999.50 is: 39,001.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,965.93 : 106,455.05 = 25,999.50 : x
  2. Step 2: Convert to fraction form
    70,965.93/106,455.05 = 25,999.50/x
  3. Step 3: Cross multiply
    70,965.93x = 106,455.05 × 25,999.50
  4. Step 4: Simplify right side
    70,965.93x = 2,767,777,942.48
  5. Step 5: Solve for x
    x = 2,767,777,942.48/70,965.93
  6. Step 6: Final answer
    x = 39,001.50

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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.