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Finding the Fourth Proportional to 66,999, 92,459.70 and 37,191

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Solution

The fourth proportional to 66,999, 92,459.70 and 37,191 is: 51,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,999 : 92,459.70 = 37,191 : x
  2. Step 2: Convert to fraction form
    66,999/92,459.70 = 37,191/x
  3. Step 3: Cross multiply
    66,999x = 92,459.70 × 37,191
  4. Step 4: Simplify right side
    66,999x = 3,438,668,702.70
  5. Step 5: Solve for x
    x = 3,438,668,702.70/66,999
  6. Step 6: Final answer
    x = 51,324.18

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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.