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Finding the Fourth Proportional to 18,545.71, 27,827.72 and 8,683.29

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Solution

The fourth proportional to 18,545.71, 27,827.72 and 8,683.29 is: 13,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.71 : 27,827.72 = 8,683.29 : x
  2. Step 2: Convert to fraction form
    18,545.71/27,827.72 = 8,683.29/x
  3. Step 3: Cross multiply
    18,545.71x = 27,827.72 × 8,683.29
  4. Step 4: Simplify right side
    18,545.71x = 241,636,162.80
  5. Step 5: Solve for x
    x = 241,636,162.80/18,545.71
  6. Step 6: Final answer
    x = 13,029.22

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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.