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Finding the Fourth Proportional to 17,076.78, 25,618.65 and 9,684.78

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Solution

The fourth proportional to 17,076.78, 25,618.65 and 9,684.78 is: 14,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,076.78 : 25,618.65 = 9,684.78 : x
  2. Step 2: Convert to fraction form
    17,076.78/25,618.65 = 9,684.78/x
  3. Step 3: Cross multiply
    17,076.78x = 25,618.65 × 9,684.78
  4. Step 4: Simplify right side
    17,076.78x = 248,110,989.15
  5. Step 5: Solve for x
    x = 248,110,989.15/17,076.78
  6. Step 6: Final answer
    x = 14,529.14

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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.