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Finding the Fourth Proportional to 16,695.21, 25,025.50 and 10,440.87

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Solution

The fourth proportional to 16,695.21, 25,025.50 and 10,440.87 is: 15,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695.21 : 25,025.50 = 10,440.87 : x
  2. Step 2: Convert to fraction form
    16,695.21/25,025.50 = 10,440.87/x
  3. Step 3: Cross multiply
    16,695.21x = 25,025.50 × 10,440.87
  4. Step 4: Simplify right side
    16,695.21x = 261,287,911.39
  5. Step 5: Solve for x
    x = 261,287,911.39/16,695.21
  6. Step 6: Final answer
    x = 15,650.47

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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.