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Finding the Fourth Proportional to 64,388.48, 96,572.39 and 17,630.42

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Solution

The fourth proportional to 64,388.48, 96,572.39 and 17,630.42 is: 26,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,388.48 : 96,572.39 = 17,630.42 : x
  2. Step 2: Convert to fraction form
    64,388.48/96,572.39 = 17,630.42/x
  3. Step 3: Cross multiply
    64,388.48x = 96,572.39 × 17,630.42
  4. Step 4: Simplify right side
    64,388.48x = 1,702,611,225.09
  5. Step 5: Solve for x
    x = 1,702,611,225.09/64,388.48
  6. Step 6: Final answer
    x = 26,442.79

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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.