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Finding the Fourth Proportional to 45,714.80, 68,579.04 and 14,557.04

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Solution

The fourth proportional to 45,714.80, 68,579.04 and 14,557.04 is: 21,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,714.80 : 68,579.04 = 14,557.04 : x
  2. Step 2: Convert to fraction form
    45,714.80/68,579.04 = 14,557.04/x
  3. Step 3: Cross multiply
    45,714.80x = 68,579.04 × 14,557.04
  4. Step 4: Simplify right side
    45,714.80x = 998,307,828.44
  5. Step 5: Solve for x
    x = 998,307,828.44/45,714.80
  6. Step 6: Final answer
    x = 21,837.74

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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.