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Finding the Fourth Proportional to 17,882.76, 26,931.20 and 16,286.64

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Solution

The fourth proportional to 17,882.76, 26,931.20 and 16,286.64 is: 24,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,882.76 : 26,931.20 = 16,286.64 : x
  2. Step 2: Convert to fraction form
    17,882.76/26,931.20 = 16,286.64/x
  3. Step 3: Cross multiply
    17,882.76x = 26,931.20 × 16,286.64
  4. Step 4: Simplify right side
    17,882.76x = 438,618,759.17
  5. Step 5: Solve for x
    x = 438,618,759.17/17,882.76
  6. Step 6: Final answer
    x = 24,527.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.