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Finding the Fourth Proportional to 48,572.80, 67,032.14 and 28,431.56

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Solution

The fourth proportional to 48,572.80, 67,032.14 and 28,431.56 is: 39,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,572.80 : 67,032.14 = 28,431.56 : x
  2. Step 2: Convert to fraction form
    48,572.80/67,032.14 = 28,431.56/x
  3. Step 3: Cross multiply
    48,572.80x = 67,032.14 × 28,431.56
  4. Step 4: Simplify right side
    48,572.80x = 1,905,828,310.34
  5. Step 5: Solve for x
    x = 1,905,828,310.34/48,572.80
  6. Step 6: Final answer
    x = 39,236.53

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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.