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Finding the Fourth Proportional to 66,653.44, 92,000 and 41,488

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Solution

The fourth proportional to 66,653.44, 92,000 and 41,488 is: 57,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.44 : 92,000 = 41,488 : x
  2. Step 2: Convert to fraction form
    66,653.44/92,000 = 41,488/x
  3. Step 3: Cross multiply
    66,653.44x = 92,000 × 41,488
  4. Step 4: Simplify right side
    66,653.44x = 3,816,896,000
  5. Step 5: Solve for x
    x = 3,816,896,000/66,653.44
  6. Step 6: Final answer
    x = 57,264.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.