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Finding the Fourth Proportional to 37,298.40, 51,471.80 and 20,531.40

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Solution

The fourth proportional to 37,298.40, 51,471.80 and 20,531.40 is: 28,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,298.40 : 51,471.80 = 20,531.40 : x
  2. Step 2: Convert to fraction form
    37,298.40/51,471.80 = 20,531.40/x
  3. Step 3: Cross multiply
    37,298.40x = 51,471.80 × 20,531.40
  4. Step 4: Simplify right side
    37,298.40x = 1,056,788,114.52
  5. Step 5: Solve for x
    x = 1,056,788,114.52/37,298.40
  6. Step 6: Final answer
    x = 28,333.34

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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.