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Finding the Fourth Proportional to 15,663.78, 23,496.48 and 7,863.48

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Solution

The fourth proportional to 15,663.78, 23,496.48 and 7,863.48 is: 11,795.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,663.78 : 23,496.48 = 7,863.48 : x
  2. Step 2: Convert to fraction form
    15,663.78/23,496.48 = 7,863.48/x
  3. Step 3: Cross multiply
    15,663.78x = 23,496.48 × 7,863.48
  4. Step 4: Simplify right side
    15,663.78x = 184,764,100.55
  5. Step 5: Solve for x
    x = 184,764,100.55/15,663.78
  6. Step 6: Final answer
    x = 11,795.63

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1.5x scale

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.