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Finding the Fourth Proportional to 18,417.63, 27,634.64 and 9,650.49

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Solution

The fourth proportional to 18,417.63, 27,634.64 and 9,650.49 is: 14,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.63 : 27,634.64 = 9,650.49 : x
  2. Step 2: Convert to fraction form
    18,417.63/27,634.64 = 9,650.49/x
  3. Step 3: Cross multiply
    18,417.63x = 27,634.64 × 9,650.49
  4. Step 4: Simplify right side
    18,417.63x = 266,687,816.97
  5. Step 5: Solve for x
    x = 266,687,816.97/18,417.63
  6. Step 6: Final answer
    x = 14,480.03

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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.