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Finding the Fourth Proportional to 18,195.84, 27,288.50 and 6,347.97

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Solution

The fourth proportional to 18,195.84, 27,288.50 and 6,347.97 is: 9,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.84 : 27,288.50 = 6,347.97 : x
  2. Step 2: Convert to fraction form
    18,195.84/27,288.50 = 6,347.97/x
  3. Step 3: Cross multiply
    18,195.84x = 27,288.50 × 6,347.97
  4. Step 4: Simplify right side
    18,195.84x = 173,226,547.61
  5. Step 5: Solve for x
    x = 173,226,547.61/18,195.84
  6. Step 6: Final answer
    x = 9,520.12

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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.