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Finding the Fourth Proportional to 45,765.80, 68,648.70 and 14,604.20

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Solution

The fourth proportional to 45,765.80, 68,648.70 and 14,604.20 is: 21,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,765.80 : 68,648.70 = 14,604.20 : x
  2. Step 2: Convert to fraction form
    45,765.80/68,648.70 = 14,604.20/x
  3. Step 3: Cross multiply
    45,765.80x = 68,648.70 × 14,604.20
  4. Step 4: Simplify right side
    45,765.80x = 1,002,559,344.54
  5. Step 5: Solve for x
    x = 1,002,559,344.54/45,765.80
  6. Step 6: Final answer
    x = 21,906.30

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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.