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Finding the Fourth Proportional to 66,980, 92,432.76 and 41,844.08

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Solution

The fourth proportional to 66,980, 92,432.76 and 41,844.08 is: 57,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,980 : 92,432.76 = 41,844.08 : x
  2. Step 2: Convert to fraction form
    66,980/92,432.76 = 41,844.08/x
  3. Step 3: Cross multiply
    66,980x = 92,432.76 × 41,844.08
  4. Step 4: Simplify right side
    66,980x = 3,867,763,804.06
  5. Step 5: Solve for x
    x = 3,867,763,804.06/66,980
  6. Step 6: Final answer
    x = 57,745.06

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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.