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Finding the Fourth Proportional to 20,460.54, 30,692.55 and 5,669.46

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Solution

The fourth proportional to 20,460.54, 30,692.55 and 5,669.46 is: 8,504.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.54 : 30,692.55 = 5,669.46 : x
  2. Step 2: Convert to fraction form
    20,460.54/30,692.55 = 5,669.46/x
  3. Step 3: Cross multiply
    20,460.54x = 30,692.55 × 5,669.46
  4. Step 4: Simplify right side
    20,460.54x = 174,010,184.52
  5. Step 5: Solve for x
    x = 174,010,184.52/20,460.54
  6. Step 6: Final answer
    x = 8,504.67

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1.5x scale

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.