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Finding the Fourth Proportional to 48,728.81, 67,245.80 and 26,372.81

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Solution

The fourth proportional to 48,728.81, 67,245.80 and 26,372.81 is: 36,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,728.81 : 67,245.80 = 26,372.81 : x
  2. Step 2: Convert to fraction form
    48,728.81/67,245.80 = 26,372.81/x
  3. Step 3: Cross multiply
    48,728.81x = 67,245.80 × 26,372.81
  4. Step 4: Simplify right side
    48,728.81x = 1,773,460,742.95
  5. Step 5: Solve for x
    x = 1,773,460,742.95/48,728.81
  6. Step 6: Final answer
    x = 36,394.50

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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.