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Finding the Fourth Proportional to 40,692.87, 61,034.67 and 11,113.11

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Solution

The fourth proportional to 40,692.87, 61,034.67 and 11,113.11 is: 16,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,692.87 : 61,034.67 = 11,113.11 : x
  2. Step 2: Convert to fraction form
    40,692.87/61,034.67 = 11,113.11/x
  3. Step 3: Cross multiply
    40,692.87x = 61,034.67 × 11,113.11
  4. Step 4: Simplify right side
    40,692.87x = 678,285,001.52
  5. Step 5: Solve for x
    x = 678,285,001.52/40,692.87
  6. Step 6: Final answer
    x = 16,668.40

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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.