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Finding the Fourth Proportional to 66,251.83, 99,387.60 and 21,883.27

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Solution

The fourth proportional to 66,251.83, 99,387.60 and 21,883.27 is: 32,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251.83 : 99,387.60 = 21,883.27 : x
  2. Step 2: Convert to fraction form
    66,251.83/99,387.60 = 21,883.27/x
  3. Step 3: Cross multiply
    66,251.83x = 99,387.60 × 21,883.27
  4. Step 4: Simplify right side
    66,251.83x = 2,174,925,576.04
  5. Step 5: Solve for x
    x = 2,174,925,576.04/66,251.83
  6. Step 6: Final answer
    x = 32,828.16

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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.