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Finding the Fourth Proportional to 17,887.79, 26,782.43 and 9,079.62

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Solution

The fourth proportional to 17,887.79, 26,782.43 and 9,079.62 is: 13,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.79 : 26,782.43 = 9,079.62 : x
  2. Step 2: Convert to fraction form
    17,887.79/26,782.43 = 9,079.62/x
  3. Step 3: Cross multiply
    17,887.79x = 26,782.43 × 9,079.62
  4. Step 4: Simplify right side
    17,887.79x = 243,174,241.68
  5. Step 5: Solve for x
    x = 243,174,241.68/17,887.79
  6. Step 6: Final answer
    x = 13,594.43

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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.