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Finding the Fourth Proportional to 66,653.70, 99,977.45 and 16,732.69

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Solution

The fourth proportional to 66,653.70, 99,977.45 and 16,732.69 is: 25,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.70 : 99,977.45 = 16,732.69 : x
  2. Step 2: Convert to fraction form
    66,653.70/99,977.45 = 16,732.69/x
  3. Step 3: Cross multiply
    66,653.70x = 99,977.45 × 16,732.69
  4. Step 4: Simplify right side
    66,653.70x = 1,672,891,677.84
  5. Step 5: Solve for x
    x = 1,672,891,677.84/66,653.70
  6. Step 6: Final answer
    x = 25,098.26

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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.