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Finding the Fourth Proportional to 17,111.40, 25,667.10 and 8,363.40

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Solution

The fourth proportional to 17,111.40, 25,667.10 and 8,363.40 is: 12,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,111.40 : 25,667.10 = 8,363.40 : x
  2. Step 2: Convert to fraction form
    17,111.40/25,667.10 = 8,363.40/x
  3. Step 3: Cross multiply
    17,111.40x = 25,667.10 × 8,363.40
  4. Step 4: Simplify right side
    17,111.40x = 214,664,224.14
  5. Step 5: Solve for x
    x = 214,664,224.14/17,111.40
  6. Step 6: Final answer
    x = 12,545.10

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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.