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Finding the Fourth Proportional to 16,695.64, 25,035.90 and 7,941.16

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Solution

The fourth proportional to 16,695.64, 25,035.90 and 7,941.16 is: 11,908.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695.64 : 25,035.90 = 7,941.16 : x
  2. Step 2: Convert to fraction form
    16,695.64/25,035.90 = 7,941.16/x
  3. Step 3: Cross multiply
    16,695.64x = 25,035.90 × 7,941.16
  4. Step 4: Simplify right side
    16,695.64x = 198,814,087.64
  5. Step 5: Solve for x
    x = 198,814,087.64/16,695.64
  6. Step 6: Final answer
    x = 11,908.14

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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.