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Finding the Fourth Proportional to 64,840.40, 97,241.40 and 25,374.80

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Solution

The fourth proportional to 64,840.40, 97,241.40 and 25,374.80 is: 38,054.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,840.40 : 97,241.40 = 25,374.80 : x
  2. Step 2: Convert to fraction form
    64,840.40/97,241.40 = 25,374.80/x
  3. Step 3: Cross multiply
    64,840.40x = 97,241.40 × 25,374.80
  4. Step 4: Simplify right side
    64,840.40x = 2,467,481,076.72
  5. Step 5: Solve for x
    x = 2,467,481,076.72/64,840.40
  6. Step 6: Final answer
    x = 38,054.69

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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.