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Finding the Fourth Proportional to 14,416.90, 21,622.08 and 6,618.22

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Solution

The fourth proportional to 14,416.90, 21,622.08 and 6,618.22 is: 9,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,416.90 : 21,622.08 = 6,618.22 : x
  2. Step 2: Convert to fraction form
    14,416.90/21,622.08 = 6,618.22/x
  3. Step 3: Cross multiply
    14,416.90x = 21,622.08 × 6,618.22
  4. Step 4: Simplify right side
    14,416.90x = 143,099,682.30
  5. Step 5: Solve for x
    x = 143,099,682.30/14,416.90
  6. Step 6: Final answer
    x = 9,925.83

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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.