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Finding the Fourth Proportional to 8,503.67, 12,756.62 and 2,957.43

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Solution

The fourth proportional to 8,503.67, 12,756.62 and 2,957.43 is: 4,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.67 : 12,756.62 = 2,957.43 : x
  2. Step 2: Convert to fraction form
    8,503.67/12,756.62 = 2,957.43/x
  3. Step 3: Cross multiply
    8,503.67x = 12,756.62 × 2,957.43
  4. Step 4: Simplify right side
    8,503.67x = 37,726,795.90
  5. Step 5: Solve for x
    x = 37,726,795.90/8,503.67
  6. Step 6: Final answer
    x = 4,436.53

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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.