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Finding the Fourth Proportional to 64,825.75, 97,255.03 and 18,078.63

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Solution

The fourth proportional to 64,825.75, 97,255.03 and 18,078.63 is: 27,122.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,825.75 : 97,255.03 = 18,078.63 : x
  2. Step 2: Convert to fraction form
    64,825.75/97,255.03 = 18,078.63/x
  3. Step 3: Cross multiply
    64,825.75x = 97,255.03 × 18,078.63
  4. Step 4: Simplify right side
    64,825.75x = 1,758,237,703.01
  5. Step 5: Solve for x
    x = 1,758,237,703.01/64,825.75
  6. Step 6: Final answer
    x = 27,122.52

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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.