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Finding the Fourth Proportional to 14,052.72, 21,065.88 and 4,812.24

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Solution

The fourth proportional to 14,052.72, 21,065.88 and 4,812.24 is: 7,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,052.72 : 21,065.88 = 4,812.24 : x
  2. Step 2: Convert to fraction form
    14,052.72/21,065.88 = 4,812.24/x
  3. Step 3: Cross multiply
    14,052.72x = 21,065.88 × 4,812.24
  4. Step 4: Simplify right side
    14,052.72x = 101,374,070.37
  5. Step 5: Solve for x
    x = 101,374,070.37/14,052.72
  6. Step 6: Final answer
    x = 7,213.84

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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.