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Finding the Fourth Proportional to 14,445, 21,651.12 and 6,637.68

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Solution

The fourth proportional to 14,445, 21,651.12 and 6,637.68 is: 9,948.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445 : 21,651.12 = 6,637.68 : x
  2. Step 2: Convert to fraction form
    14,445/21,651.12 = 6,637.68/x
  3. Step 3: Cross multiply
    14,445x = 21,651.12 × 6,637.68
  4. Step 4: Simplify right side
    14,445x = 143,713,206.20
  5. Step 5: Solve for x
    x = 143,713,206.20/14,445
  6. Step 6: Final answer
    x = 9,948.99

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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.