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Finding the Fourth Proportional to 29,972.40, 44,958.60 and 9,193.20

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Solution

The fourth proportional to 29,972.40, 44,958.60 and 9,193.20 is: 13,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,972.40 : 44,958.60 = 9,193.20 : x
  2. Step 2: Convert to fraction form
    29,972.40/44,958.60 = 9,193.20/x
  3. Step 3: Cross multiply
    29,972.40x = 44,958.60 × 9,193.20
  4. Step 4: Simplify right side
    29,972.40x = 413,313,401.52
  5. Step 5: Solve for x
    x = 413,313,401.52/29,972.40
  6. Step 6: Final answer
    x = 13,789.80

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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.