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Finding the Fourth Proportional to 14,721.68, 22,072.53 and 7,491.07

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Solution

The fourth proportional to 14,721.68, 22,072.53 and 7,491.07 is: 11,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.68 : 22,072.53 = 7,491.07 : x
  2. Step 2: Convert to fraction form
    14,721.68/22,072.53 = 7,491.07/x
  3. Step 3: Cross multiply
    14,721.68x = 22,072.53 × 7,491.07
  4. Step 4: Simplify right side
    14,721.68x = 165,346,867.31
  5. Step 5: Solve for x
    x = 165,346,867.31/14,721.68
  6. Step 6: Final answer
    x = 11,231.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.