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Finding the Fourth Proportional to 14,584.74, 21,872.52 and 4,721.74

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Solution

The fourth proportional to 14,584.74, 21,872.52 and 4,721.74 is: 7,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,584.74 : 21,872.52 = 4,721.74 : x
  2. Step 2: Convert to fraction form
    14,584.74/21,872.52 = 4,721.74/x
  3. Step 3: Cross multiply
    14,584.74x = 21,872.52 × 4,721.74
  4. Step 4: Simplify right side
    14,584.74x = 103,276,352.58
  5. Step 5: Solve for x
    x = 103,276,352.58/14,584.74
  6. Step 6: Final answer
    x = 7,081.12

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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.