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Finding the Fourth Proportional to 66,482.62, 99,723.17 and 19,098.88

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Solution

The fourth proportional to 66,482.62, 99,723.17 and 19,098.88 is: 28,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,482.62 : 99,723.17 = 19,098.88 : x
  2. Step 2: Convert to fraction form
    66,482.62/99,723.17 = 19,098.88/x
  3. Step 3: Cross multiply
    66,482.62x = 99,723.17 × 19,098.88
  4. Step 4: Simplify right side
    66,482.62x = 1,904,600,262.94
  5. Step 5: Solve for x
    x = 1,904,600,262.94/66,482.62
  6. Step 6: Final answer
    x = 28,648.09

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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.