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Finding the Fourth Proportional to 18,564.87, 27,848.93 and 8,698.87

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Solution

The fourth proportional to 18,564.87, 27,848.93 and 8,698.87 is: 13,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.87 : 27,848.93 = 8,698.87 : x
  2. Step 2: Convert to fraction form
    18,564.87/27,848.93 = 8,698.87/x
  3. Step 3: Cross multiply
    18,564.87x = 27,848.93 × 8,698.87
  4. Step 4: Simplify right side
    18,564.87x = 242,254,221.71
  5. Step 5: Solve for x
    x = 242,254,221.71/18,564.87
  6. Step 6: Final answer
    x = 13,049.07

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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.