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Finding the Fourth Proportional to 64,874.48, 97,240.64 and 25,388.20

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Solution

The fourth proportional to 64,874.48, 97,240.64 and 25,388.20 is: 38,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,874.48 : 97,240.64 = 25,388.20 : x
  2. Step 2: Convert to fraction form
    64,874.48/97,240.64 = 25,388.20/x
  3. Step 3: Cross multiply
    64,874.48x = 97,240.64 × 25,388.20
  4. Step 4: Simplify right side
    64,874.48x = 2,468,764,816.45
  5. Step 5: Solve for x
    x = 2,468,764,816.45/64,874.48
  6. Step 6: Final answer
    x = 38,054.48

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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.