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Finding the Fourth Proportional to 8,545.52, 12,811.80 and 7,094

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Solution

The fourth proportional to 8,545.52, 12,811.80 and 7,094 is: 10,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.52 : 12,811.80 = 7,094 : x
  2. Step 2: Convert to fraction form
    8,545.52/12,811.80 = 7,094/x
  3. Step 3: Cross multiply
    8,545.52x = 12,811.80 × 7,094
  4. Step 4: Simplify right side
    8,545.52x = 90,886,909.20
  5. Step 5: Solve for x
    x = 90,886,909.20/8,545.52
  6. Step 6: Final answer
    x = 10,635.62

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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.