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Finding the Fourth Proportional to 17,654.28, 26,500.86 and 15,836.64

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Solution

The fourth proportional to 17,654.28, 26,500.86 and 15,836.64 is: 23,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,654.28 : 26,500.86 = 15,836.64 : x
  2. Step 2: Convert to fraction form
    17,654.28/26,500.86 = 15,836.64/x
  3. Step 3: Cross multiply
    17,654.28x = 26,500.86 × 15,836.64
  4. Step 4: Simplify right side
    17,654.28x = 419,684,579.51
  5. Step 5: Solve for x
    x = 419,684,579.51/17,654.28
  6. Step 6: Final answer
    x = 23,772.40

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1.5x scale

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.