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Finding the Fourth Proportional to 64,940.44, 97,412.28 and 18,196.96

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Solution

The fourth proportional to 64,940.44, 97,412.28 and 18,196.96 is: 27,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,940.44 : 97,412.28 = 18,196.96 : x
  2. Step 2: Convert to fraction form
    64,940.44/97,412.28 = 18,196.96/x
  3. Step 3: Cross multiply
    64,940.44x = 97,412.28 × 18,196.96
  4. Step 4: Simplify right side
    64,940.44x = 1,772,607,362.67
  5. Step 5: Solve for x
    x = 1,772,607,362.67/64,940.44
  6. Step 6: Final answer
    x = 27,295.89

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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.