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Finding the Fourth Proportional to 8,468.76, 12,703.80 and 2,545.19

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Solution

The fourth proportional to 8,468.76, 12,703.80 and 2,545.19 is: 3,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.76 : 12,703.80 = 2,545.19 : x
  2. Step 2: Convert to fraction form
    8,468.76/12,703.80 = 2,545.19/x
  3. Step 3: Cross multiply
    8,468.76x = 12,703.80 × 2,545.19
  4. Step 4: Simplify right side
    8,468.76x = 32,333,578.39
  5. Step 5: Solve for x
    x = 32,333,578.39/8,468.76
  6. Step 6: Final answer
    x = 3,817.98

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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.