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Finding the Fourth Proportional to 62,140.63, 85,692.50 and 38,262.65

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Solution

The fourth proportional to 62,140.63, 85,692.50 and 38,262.65 is: 52,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,140.63 : 85,692.50 = 38,262.65 : x
  2. Step 2: Convert to fraction form
    62,140.63/85,692.50 = 38,262.65/x
  3. Step 3: Cross multiply
    62,140.63x = 85,692.50 × 38,262.65
  4. Step 4: Simplify right side
    62,140.63x = 3,278,821,943.81
  5. Step 5: Solve for x
    x = 3,278,821,943.81/62,140.63
  6. Step 6: Final answer
    x = 52,764.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.