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Finding the Fourth Proportional to 16,857.10, 23,634.50 and 16,857.10

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Solution

The fourth proportional to 16,857.10, 23,634.50 and 16,857.10 is: 23,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.10 : 23,634.50 = 16,857.10 : x
  2. Step 2: Convert to fraction form
    16,857.10/23,634.50 = 16,857.10/x
  3. Step 3: Cross multiply
    16,857.10x = 23,634.50 × 16,857.10
  4. Step 4: Simplify right side
    16,857.10x = 398,409,129.95
  5. Step 5: Solve for x
    x = 398,409,129.95/16,857.10
  6. Step 6: Final answer
    x = 23,634.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.