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Finding the Fourth Proportional to 18,353.58, 27,533 and 8,495.47

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Solution

The fourth proportional to 18,353.58, 27,533 and 8,495.47 is: 12,744.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.58 : 27,533 = 8,495.47 : x
  2. Step 2: Convert to fraction form
    18,353.58/27,533 = 8,495.47/x
  3. Step 3: Cross multiply
    18,353.58x = 27,533 × 8,495.47
  4. Step 4: Simplify right side
    18,353.58x = 233,905,775.51
  5. Step 5: Solve for x
    x = 233,905,775.51/18,353.58
  6. Step 6: Final answer
    x = 12,744.42

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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.