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Finding the Fourth Proportional to 17,666.54, 26,490.49 and 7,801.15

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Solution

The fourth proportional to 17,666.54, 26,490.49 and 7,801.15 is: 11,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,666.54 : 26,490.49 = 7,801.15 : x
  2. Step 2: Convert to fraction form
    17,666.54/26,490.49 = 7,801.15/x
  3. Step 3: Cross multiply
    17,666.54x = 26,490.49 × 7,801.15
  4. Step 4: Simplify right side
    17,666.54x = 206,656,286.06
  5. Step 5: Solve for x
    x = 206,656,286.06/17,666.54
  6. Step 6: Final answer
    x = 11,697.61

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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.