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Finding the Fourth Proportional to 43,453.40, 65,166.30 and 13,864.41

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Solution

The fourth proportional to 43,453.40, 65,166.30 and 13,864.41 is: 20,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,453.40 : 65,166.30 = 13,864.41 : x
  2. Step 2: Convert to fraction form
    43,453.40/65,166.30 = 13,864.41/x
  3. Step 3: Cross multiply
    43,453.40x = 65,166.30 × 13,864.41
  4. Step 4: Simplify right side
    43,453.40x = 903,492,301.38
  5. Step 5: Solve for x
    x = 903,492,301.38/43,453.40
  6. Step 6: Final answer
    x = 20,792.21

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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.