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Finding the Fourth Proportional to 70,076.27, 105,051.91 and 25,692.68

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Solution

The fourth proportional to 70,076.27, 105,051.91 and 25,692.68 is: 38,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,076.27 : 105,051.91 = 25,692.68 : x
  2. Step 2: Convert to fraction form
    70,076.27/105,051.91 = 25,692.68/x
  3. Step 3: Cross multiply
    70,076.27x = 105,051.91 × 25,692.68
  4. Step 4: Simplify right side
    70,076.27x = 2,699,065,107.02
  5. Step 5: Solve for x
    x = 2,699,065,107.02/70,076.27
  6. Step 6: Final answer
    x = 38,516.11

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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.