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Finding the Fourth Proportional to 8,545.79, 12,818.34 and 2,702.42

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Solution

The fourth proportional to 8,545.79, 12,818.34 and 2,702.42 is: 4,053.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.79 : 12,818.34 = 2,702.42 : x
  2. Step 2: Convert to fraction form
    8,545.79/12,818.34 = 2,702.42/x
  3. Step 3: Cross multiply
    8,545.79x = 12,818.34 × 2,702.42
  4. Step 4: Simplify right side
    8,545.79x = 34,640,474.29
  5. Step 5: Solve for x
    x = 34,640,474.29/8,545.79
  6. Step 6: Final answer
    x = 4,053.52

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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.