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Finding the Fourth Proportional to 18,393.69, 27,607.85 and 9,634.75

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Solution

The fourth proportional to 18,393.69, 27,607.85 and 9,634.75 is: 14,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.69 : 27,607.85 = 9,634.75 : x
  2. Step 2: Convert to fraction form
    18,393.69/27,607.85 = 9,634.75/x
  3. Step 3: Cross multiply
    18,393.69x = 27,607.85 × 9,634.75
  4. Step 4: Simplify right side
    18,393.69x = 265,994,732.79
  5. Step 5: Solve for x
    x = 265,994,732.79/18,393.69
  6. Step 6: Final answer
    x = 14,461.19

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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.