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Finding the Fourth Proportional to 18,557.52, 27,835.02 and 8,698.98

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Solution

The fourth proportional to 18,557.52, 27,835.02 and 8,698.98 is: 13,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.52 : 27,835.02 = 8,698.98 : x
  2. Step 2: Convert to fraction form
    18,557.52/27,835.02 = 8,698.98/x
  3. Step 3: Cross multiply
    18,557.52x = 27,835.02 × 8,698.98
  4. Step 4: Simplify right side
    18,557.52x = 242,136,282.28
  5. Step 5: Solve for x
    x = 242,136,282.28/18,557.52
  6. Step 6: Final answer
    x = 13,047.88

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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.