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Finding the Fourth Proportional to 32,903.80, 49,331.40 and 18,129.40

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Solution

The fourth proportional to 32,903.80, 49,331.40 and 18,129.40 is: 27,180.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,903.80 : 49,331.40 = 18,129.40 : x
  2. Step 2: Convert to fraction form
    32,903.80/49,331.40 = 18,129.40/x
  3. Step 3: Cross multiply
    32,903.80x = 49,331.40 × 18,129.40
  4. Step 4: Simplify right side
    32,903.80x = 894,348,683.16
  5. Step 5: Solve for x
    x = 894,348,683.16/32,903.80
  6. Step 6: Final answer
    x = 27,180.71

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