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Finding the Fourth Proportional to 66,883.86, 92,309.16 and 41,398.38

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Solution

The fourth proportional to 66,883.86, 92,309.16 and 41,398.38 is: 57,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,883.86 : 92,309.16 = 41,398.38 : x
  2. Step 2: Convert to fraction form
    66,883.86/92,309.16 = 41,398.38/x
  3. Step 3: Cross multiply
    66,883.86x = 92,309.16 × 41,398.38
  4. Step 4: Simplify right side
    66,883.86x = 3,821,449,683.16
  5. Step 5: Solve for x
    x = 3,821,449,683.16/66,883.86
  6. Step 6: Final answer
    x = 57,135.60

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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.