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Finding the Fourth Proportional to 8,363.74, 12,545.61 and 2,124.22

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Solution

The fourth proportional to 8,363.74, 12,545.61 and 2,124.22 is: 3,186.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.74 : 12,545.61 = 2,124.22 : x
  2. Step 2: Convert to fraction form
    8,363.74/12,545.61 = 2,124.22/x
  3. Step 3: Cross multiply
    8,363.74x = 12,545.61 × 2,124.22
  4. Step 4: Simplify right side
    8,363.74x = 26,649,588.63
  5. Step 5: Solve for x
    x = 26,649,588.63/8,363.74
  6. Step 6: Final answer
    x = 3,186.33

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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.