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Finding the Fourth Proportional to 64,512.60, 96,623.10 and 38,268.60

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Solution

The fourth proportional to 64,512.60, 96,623.10 and 38,268.60 is: 57,316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,512.60 : 96,623.10 = 38,268.60 : x
  2. Step 2: Convert to fraction form
    64,512.60/96,623.10 = 38,268.60/x
  3. Step 3: Cross multiply
    64,512.60x = 96,623.10 × 38,268.60
  4. Step 4: Simplify right side
    64,512.60x = 3,697,630,764.66
  5. Step 5: Solve for x
    x = 3,697,630,764.66/64,512.60
  6. Step 6: Final answer
    x = 57,316.41

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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.