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Finding the Fourth Proportional to 51,603.56, 77,400.30 and 16,533.80

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Solution

The fourth proportional to 51,603.56, 77,400.30 and 16,533.80 is: 24,799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,603.56 : 77,400.30 = 16,533.80 : x
  2. Step 2: Convert to fraction form
    51,603.56/77,400.30 = 16,533.80/x
  3. Step 3: Cross multiply
    51,603.56x = 77,400.30 × 16,533.80
  4. Step 4: Simplify right side
    51,603.56x = 1,279,721,080.14
  5. Step 5: Solve for x
    x = 1,279,721,080.14/51,603.56
  6. Step 6: Final answer
    x = 24,799.09

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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.