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Finding the Fourth Proportional to 14,044.16, 21,063 and 5,279.96

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Solution

The fourth proportional to 14,044.16, 21,063 and 5,279.96 is: 7,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,044.16 : 21,063 = 5,279.96 : x
  2. Step 2: Convert to fraction form
    14,044.16/21,063 = 5,279.96/x
  3. Step 3: Cross multiply
    14,044.16x = 21,063 × 5,279.96
  4. Step 4: Simplify right side
    14,044.16x = 111,211,797.48
  5. Step 5: Solve for x
    x = 111,211,797.48/14,044.16
  6. Step 6: Final answer
    x = 7,918.72

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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.