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Finding the Fourth Proportional to 29,688.62, 40,960.14 and 16,932.64

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Solution

The fourth proportional to 29,688.62, 40,960.14 and 16,932.64 is: 23,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.62 : 40,960.14 = 16,932.64 : x
  2. Step 2: Convert to fraction form
    29,688.62/40,960.14 = 16,932.64/x
  3. Step 3: Cross multiply
    29,688.62x = 40,960.14 × 16,932.64
  4. Step 4: Simplify right side
    29,688.62x = 693,563,202.57
  5. Step 5: Solve for x
    x = 693,563,202.57/29,688.62
  6. Step 6: Final answer
    x = 23,361.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.