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Finding the Fourth Proportional to 40,453.75, 60,692.57 and 20,746.11

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Solution

The fourth proportional to 40,453.75, 60,692.57 and 20,746.11 is: 31,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,453.75 : 60,692.57 = 20,746.11 : x
  2. Step 2: Convert to fraction form
    40,453.75/60,692.57 = 20,746.11/x
  3. Step 3: Cross multiply
    40,453.75x = 60,692.57 × 20,746.11
  4. Step 4: Simplify right side
    40,453.75x = 1,259,134,733.40
  5. Step 5: Solve for x
    x = 1,259,134,733.40/40,453.75
  6. Step 6: Final answer
    x = 31,125.29

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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.