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Finding the Fourth Proportional to 51,542.58, 77,259.90 and 21,573.99

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Solution

The fourth proportional to 51,542.58, 77,259.90 and 21,573.99 is: 32,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,542.58 : 77,259.90 = 21,573.99 : x
  2. Step 2: Convert to fraction form
    51,542.58/77,259.90 = 21,573.99/x
  3. Step 3: Cross multiply
    51,542.58x = 77,259.90 × 21,573.99
  4. Step 4: Simplify right side
    51,542.58x = 1,666,804,310.00
  5. Step 5: Solve for x
    x = 1,666,804,310.00/51,542.58
  6. Step 6: Final answer
    x = 32,338.39

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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.