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Finding the Fourth Proportional to 48,676, 67,172.88 and 26,320

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Solution

The fourth proportional to 48,676, 67,172.88 and 26,320 is: 36,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,676 : 67,172.88 = 26,320 : x
  2. Step 2: Convert to fraction form
    48,676/67,172.88 = 26,320/x
  3. Step 3: Cross multiply
    48,676x = 67,172.88 × 26,320
  4. Step 4: Simplify right side
    48,676x = 1,767,990,201.60
  5. Step 5: Solve for x
    x = 1,767,990,201.60/48,676
  6. Step 6: Final answer
    x = 36,321.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.