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Finding the Fourth Proportional to 14,392.80, 21,577.20 and 6,079.20

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Solution

The fourth proportional to 14,392.80, 21,577.20 and 6,079.20 is: 9,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.80 : 21,577.20 = 6,079.20 : x
  2. Step 2: Convert to fraction form
    14,392.80/21,577.20 = 6,079.20/x
  3. Step 3: Cross multiply
    14,392.80x = 21,577.20 × 6,079.20
  4. Step 4: Simplify right side
    14,392.80x = 131,172,114.24
  5. Step 5: Solve for x
    x = 131,172,114.24/14,392.80
  6. Step 6: Final answer
    x = 9,113.73

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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.