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Finding the Fourth Proportional to 29,640.48, 44,451.36 and 9,914.40

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Solution

The fourth proportional to 29,640.48, 44,451.36 and 9,914.40 is: 14,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.48 : 44,451.36 = 9,914.40 : x
  2. Step 2: Convert to fraction form
    29,640.48/44,451.36 = 9,914.40/x
  3. Step 3: Cross multiply
    29,640.48x = 44,451.36 × 9,914.40
  4. Step 4: Simplify right side
    29,640.48x = 440,708,563.58
  5. Step 5: Solve for x
    x = 440,708,563.58/29,640.48
  6. Step 6: Final answer
    x = 14,868.47

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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.