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Finding the Fourth Proportional to 18,363.84, 27,547.02 and 5,217.24

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Solution

The fourth proportional to 18,363.84, 27,547.02 and 5,217.24 is: 7,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.84 : 27,547.02 = 5,217.24 : x
  2. Step 2: Convert to fraction form
    18,363.84/27,547.02 = 5,217.24/x
  3. Step 3: Cross multiply
    18,363.84x = 27,547.02 × 5,217.24
  4. Step 4: Simplify right side
    18,363.84x = 143,719,414.62
  5. Step 5: Solve for x
    x = 143,719,414.62/18,363.84
  6. Step 6: Final answer
    x = 7,826.22

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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.