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Finding the Fourth Proportional to 29,442.30, 44,163.45 and 12,821.10

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Solution

The fourth proportional to 29,442.30, 44,163.45 and 12,821.10 is: 19,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,442.30 : 44,163.45 = 12,821.10 : x
  2. Step 2: Convert to fraction form
    29,442.30/44,163.45 = 12,821.10/x
  3. Step 3: Cross multiply
    29,442.30x = 44,163.45 × 12,821.10
  4. Step 4: Simplify right side
    29,442.30x = 566,224,008.80
  5. Step 5: Solve for x
    x = 566,224,008.80/29,442.30
  6. Step 6: Final answer
    x = 19,231.65

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Similar ratio
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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.