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Finding the Fourth Proportional to 51,563.66, 77,272.52 and 21,951.68

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Solution

The fourth proportional to 51,563.66, 77,272.52 and 21,951.68 is: 32,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,563.66 : 77,272.52 = 21,951.68 : x
  2. Step 2: Convert to fraction form
    51,563.66/77,272.52 = 21,951.68/x
  3. Step 3: Cross multiply
    51,563.66x = 77,272.52 × 21,951.68
  4. Step 4: Simplify right side
    51,563.66x = 1,696,261,135.71
  5. Step 5: Solve for x
    x = 1,696,261,135.71/51,563.66
  6. Step 6: Final answer
    x = 32,896.45

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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.