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Finding the Fourth Proportional to 66,958.56, 92,379.93 and 38,257.63

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Solution

The fourth proportional to 66,958.56, 92,379.93 and 38,257.63 is: 52,782.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.56 : 92,379.93 = 38,257.63 : x
  2. Step 2: Convert to fraction form
    66,958.56/92,379.93 = 38,257.63/x
  3. Step 3: Cross multiply
    66,958.56x = 92,379.93 × 38,257.63
  4. Step 4: Simplify right side
    66,958.56x = 3,534,236,806.95
  5. Step 5: Solve for x
    x = 3,534,236,806.95/66,958.56
  6. Step 6: Final answer
    x = 52,782.45

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1.5x scale

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.