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Finding the Fourth Proportional to 66,564.72, 99,864.36 and 33,283.44

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Solution

The fourth proportional to 66,564.72, 99,864.36 and 33,283.44 is: 49,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,564.72 : 99,864.36 = 33,283.44 : x
  2. Step 2: Convert to fraction form
    66,564.72/99,864.36 = 33,283.44/x
  3. Step 3: Cross multiply
    66,564.72x = 99,864.36 × 33,283.44
  4. Step 4: Simplify right side
    66,564.72x = 3,323,829,434.20
  5. Step 5: Solve for x
    x = 3,323,829,434.20/66,564.72
  6. Step 6: Final answer
    x = 49,933.80

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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.