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Finding the Fourth Proportional to 31,732.40, 47,598.60 and 20,068.40

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Solution

The fourth proportional to 31,732.40, 47,598.60 and 20,068.40 is: 30,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,732.40 : 47,598.60 = 20,068.40 : x
  2. Step 2: Convert to fraction form
    31,732.40/47,598.60 = 20,068.40/x
  3. Step 3: Cross multiply
    31,732.40x = 47,598.60 × 20,068.40
  4. Step 4: Simplify right side
    31,732.40x = 955,227,744.24
  5. Step 5: Solve for x
    x = 955,227,744.24/31,732.40
  6. Step 6: Final answer
    x = 30,102.60

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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.