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Finding the Fourth Proportional to 48,311.41, 66,670.41 and 36,190.42

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Solution

The fourth proportional to 48,311.41, 66,670.41 and 36,190.42 is: 49,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,311.41 : 66,670.41 = 36,190.42 : x
  2. Step 2: Convert to fraction form
    48,311.41/66,670.41 = 36,190.42/x
  3. Step 3: Cross multiply
    48,311.41x = 66,670.41 × 36,190.42
  4. Step 4: Simplify right side
    48,311.41x = 2,412,830,139.47
  5. Step 5: Solve for x
    x = 2,412,830,139.47/48,311.41
  6. Step 6: Final answer
    x = 49,943.28

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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.