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Finding the Fourth Proportional to 66,972.02, 92,420.80 and 36,755.98

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Solution

The fourth proportional to 66,972.02, 92,420.80 and 36,755.98 is: 50,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,972.02 : 92,420.80 = 36,755.98 : x
  2. Step 2: Convert to fraction form
    66,972.02/92,420.80 = 36,755.98/x
  3. Step 3: Cross multiply
    66,972.02x = 92,420.80 × 36,755.98
  4. Step 4: Simplify right side
    66,972.02x = 3,397,016,753.44
  5. Step 5: Solve for x
    x = 3,397,016,753.44/66,972.02
  6. Step 6: Final answer
    x = 50,722.93

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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.