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Finding the Fourth Proportional to 14,216.74, 19,628.22 and 12,722.06

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Solution

The fourth proportional to 14,216.74, 19,628.22 and 12,722.06 is: 17,564.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.74 : 19,628.22 = 12,722.06 : x
  2. Step 2: Convert to fraction form
    14,216.74/19,628.22 = 12,722.06/x
  3. Step 3: Cross multiply
    14,216.74x = 19,628.22 × 12,722.06
  4. Step 4: Simplify right side
    14,216.74x = 249,711,489.31
  5. Step 5: Solve for x
    x = 249,711,489.31/14,216.74
  6. Step 6: Final answer
    x = 17,564.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.