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Finding the Fourth Proportional to 8,473.86, 12,712.41 and 2,926.98

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Solution

The fourth proportional to 8,473.86, 12,712.41 and 2,926.98 is: 4,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.86 : 12,712.41 = 2,926.98 : x
  2. Step 2: Convert to fraction form
    8,473.86/12,712.41 = 2,926.98/x
  3. Step 3: Cross multiply
    8,473.86x = 12,712.41 × 2,926.98
  4. Step 4: Simplify right side
    8,473.86x = 37,208,969.82
  5. Step 5: Solve for x
    x = 37,208,969.82/8,473.86
  6. Step 6: Final answer
    x = 4,391.03

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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.