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Finding the Fourth Proportional to 64,905.52, 97,358.28 and 25,481.20

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Solution

The fourth proportional to 64,905.52, 97,358.28 and 25,481.20 is: 38,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.52 : 97,358.28 = 25,481.20 : x
  2. Step 2: Convert to fraction form
    64,905.52/97,358.28 = 25,481.20/x
  3. Step 3: Cross multiply
    64,905.52x = 97,358.28 × 25,481.20
  4. Step 4: Simplify right side
    64,905.52x = 2,480,805,804.34
  5. Step 5: Solve for x
    x = 2,480,805,804.34/64,905.52
  6. Step 6: Final answer
    x = 38,221.80

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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.