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Finding the Fourth Proportional to 41,376.60, 62,079.93 and 20,314.40

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Solution

The fourth proportional to 41,376.60, 62,079.93 and 20,314.40 is: 30,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,376.60 : 62,079.93 = 20,314.40 : x
  2. Step 2: Convert to fraction form
    41,376.60/62,079.93 = 20,314.40/x
  3. Step 3: Cross multiply
    41,376.60x = 62,079.93 × 20,314.40
  4. Step 4: Simplify right side
    41,376.60x = 1,261,116,219.59
  5. Step 5: Solve for x
    x = 1,261,116,219.59/41,376.60
  6. Step 6: Final answer
    x = 30,478.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.