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Finding the Fourth Proportional to 18,364.80, 27,547.20 and 6,676.68

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Solution

The fourth proportional to 18,364.80, 27,547.20 and 6,676.68 is: 10,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.80 : 27,547.20 = 6,676.68 : x
  2. Step 2: Convert to fraction form
    18,364.80/27,547.20 = 6,676.68/x
  3. Step 3: Cross multiply
    18,364.80x = 27,547.20 × 6,676.68
  4. Step 4: Simplify right side
    18,364.80x = 183,923,839.30
  5. Step 5: Solve for x
    x = 183,923,839.30/18,364.80
  6. Step 6: Final answer
    x = 10,015.02

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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.