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Finding the Fourth Proportional to 16,928.68, 23,361.54 and 9,375.40

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Solution

The fourth proportional to 16,928.68, 23,361.54 and 9,375.40 is: 12,938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,928.68 : 23,361.54 = 9,375.40 : x
  2. Step 2: Convert to fraction form
    16,928.68/23,361.54 = 9,375.40/x
  3. Step 3: Cross multiply
    16,928.68x = 23,361.54 × 9,375.40
  4. Step 4: Simplify right side
    16,928.68x = 219,023,782.12
  5. Step 5: Solve for x
    x = 219,023,782.12/16,928.68
  6. Step 6: Final answer
    x = 12,938.03

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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.