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Finding the Fourth Proportional to 14,024.40, 21,014.56 and 8,819.32

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Solution

The fourth proportional to 14,024.40, 21,014.56 and 8,819.32 is: 13,215.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,024.40 : 21,014.56 = 8,819.32 : x
  2. Step 2: Convert to fraction form
    14,024.40/21,014.56 = 8,819.32/x
  3. Step 3: Cross multiply
    14,024.40x = 21,014.56 × 8,819.32
  4. Step 4: Simplify right side
    14,024.40x = 185,334,129.30
  5. Step 5: Solve for x
    x = 185,334,129.30/14,024.40
  6. Step 6: Final answer
    x = 13,215.12

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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.