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Finding the Fourth Proportional to 20,302.90, 30,459.60 and 6,262.62

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Solution

The fourth proportional to 20,302.90, 30,459.60 and 6,262.62 is: 9,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.90 : 30,459.60 = 6,262.62 : x
  2. Step 2: Convert to fraction form
    20,302.90/30,459.60 = 6,262.62/x
  3. Step 3: Cross multiply
    20,302.90x = 30,459.60 × 6,262.62
  4. Step 4: Simplify right side
    20,302.90x = 190,756,900.15
  5. Step 5: Solve for x
    x = 190,756,900.15/20,302.90
  6. Step 6: Final answer
    x = 9,395.55

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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.