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Finding the Fourth Proportional to 18,547.65, 27,826.11 and 5,400.18

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Solution

The fourth proportional to 18,547.65, 27,826.11 and 5,400.18 is: 8,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.65 : 27,826.11 = 5,400.18 : x
  2. Step 2: Convert to fraction form
    18,547.65/27,826.11 = 5,400.18/x
  3. Step 3: Cross multiply
    18,547.65x = 27,826.11 × 5,400.18
  4. Step 4: Simplify right side
    18,547.65x = 150,266,002.70
  5. Step 5: Solve for x
    x = 150,266,002.70/18,547.65
  6. Step 6: Final answer
    x = 8,101.62

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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.