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Finding the Fourth Proportional to 44,306.40, 66,469.20 and 14,719.20

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Solution

The fourth proportional to 44,306.40, 66,469.20 and 14,719.20 is: 22,081.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,306.40 : 66,469.20 = 14,719.20 : x
  2. Step 2: Convert to fraction form
    44,306.40/66,469.20 = 14,719.20/x
  3. Step 3: Cross multiply
    44,306.40x = 66,469.20 × 14,719.20
  4. Step 4: Simplify right side
    44,306.40x = 978,373,448.64
  5. Step 5: Solve for x
    x = 978,373,448.64/44,306.40
  6. Step 6: Final answer
    x = 22,081.99

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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.