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Finding the Fourth Proportional to 16,928.76, 23,361.68 and 9,476.76

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Solution

The fourth proportional to 16,928.76, 23,361.68 and 9,476.76 is: 13,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,928.76 : 23,361.68 = 9,476.76 : x
  2. Step 2: Convert to fraction form
    16,928.76/23,361.68 = 9,476.76/x
  3. Step 3: Cross multiply
    16,928.76x = 23,361.68 × 9,476.76
  4. Step 4: Simplify right side
    16,928.76x = 221,393,034.56
  5. Step 5: Solve for x
    x = 221,393,034.56/16,928.76
  6. Step 6: Final answer
    x = 13,077.92

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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.