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Finding the Fourth Proportional to 64,906.40, 97,359.60 and 25,464.80

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Solution

The fourth proportional to 64,906.40, 97,359.60 and 25,464.80 is: 38,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,906.40 : 97,359.60 = 25,464.80 : x
  2. Step 2: Convert to fraction form
    64,906.40/97,359.60 = 25,464.80/x
  3. Step 3: Cross multiply
    64,906.40x = 97,359.60 × 25,464.80
  4. Step 4: Simplify right side
    64,906.40x = 2,479,242,742.08
  5. Step 5: Solve for x
    x = 2,479,242,742.08/64,906.40
  6. Step 6: Final answer
    x = 38,197.20

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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.