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Finding the Fourth Proportional to 66,462.74, 99,653.94 and 26,487.88

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Solution

The fourth proportional to 66,462.74, 99,653.94 and 26,487.88 is: 39,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462.74 : 99,653.94 = 26,487.88 : x
  2. Step 2: Convert to fraction form
    66,462.74/99,653.94 = 26,487.88/x
  3. Step 3: Cross multiply
    66,462.74x = 99,653.94 × 26,487.88
  4. Step 4: Simplify right side
    66,462.74x = 2,639,621,604.25
  5. Step 5: Solve for x
    x = 2,639,621,604.25/66,462.74
  6. Step 6: Final answer
    x = 39,715.81

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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.