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Finding the Fourth Proportional to 22,580.71, 33,863.88 and 21,106.53

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Solution

The fourth proportional to 22,580.71, 33,863.88 and 21,106.53 is: 31,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580.71 : 33,863.88 = 21,106.53 : x
  2. Step 2: Convert to fraction form
    22,580.71/33,863.88 = 21,106.53/x
  3. Step 3: Cross multiply
    22,580.71x = 33,863.88 × 21,106.53
  4. Step 4: Simplify right side
    22,580.71x = 714,749,078.29
  5. Step 5: Solve for x
    x = 714,749,078.29/22,580.71
  6. Step 6: Final answer
    x = 31,653.09

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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.