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Finding the Fourth Proportional to 29,921.92, 44,882.88 and 9,142.72

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Solution

The fourth proportional to 29,921.92, 44,882.88 and 9,142.72 is: 13,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,921.92 : 44,882.88 = 9,142.72 : x
  2. Step 2: Convert to fraction form
    29,921.92/44,882.88 = 9,142.72/x
  3. Step 3: Cross multiply
    29,921.92x = 44,882.88 × 9,142.72
  4. Step 4: Simplify right side
    29,921.92x = 410,351,604.63
  5. Step 5: Solve for x
    x = 410,351,604.63/29,921.92
  6. Step 6: Final answer
    x = 13,714.08

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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.