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Finding the Fourth Proportional to 29,910.60, 44,849.70 and 12,382.20

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Solution

The fourth proportional to 29,910.60, 44,849.70 and 12,382.20 is: 18,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,910.60 : 44,849.70 = 12,382.20 : x
  2. Step 2: Convert to fraction form
    29,910.60/44,849.70 = 12,382.20/x
  3. Step 3: Cross multiply
    29,910.60x = 44,849.70 × 12,382.20
  4. Step 4: Simplify right side
    29,910.60x = 555,337,955.34
  5. Step 5: Solve for x
    x = 555,337,955.34/29,910.60
  6. Step 6: Final answer
    x = 18,566.59

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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.