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Finding the Fourth Proportional to 64,516.60, 96,629.10 and 38,272.60

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Solution

The fourth proportional to 64,516.60, 96,629.10 and 38,272.60 is: 57,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,516.60 : 96,629.10 = 38,272.60 : x
  2. Step 2: Convert to fraction form
    64,516.60/96,629.10 = 38,272.60/x
  3. Step 3: Cross multiply
    64,516.60x = 96,629.10 × 38,272.60
  4. Step 4: Simplify right side
    64,516.60x = 3,698,246,892.66
  5. Step 5: Solve for x
    x = 3,698,246,892.66/64,516.60
  6. Step 6: Final answer
    x = 57,322.41

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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.